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142806424761 = 34711131992699
BaseRepresentation
bin1000010011111111101…
…1010001110010111001
3111122121102111000210000
42010333323101302321
54314431421043021
6145334313143213
713213606403460
oct2047773216271
9448542430700
10142806424761
115562255a650
12238156bab09
131060b12b670
146caa2459d7
153aac2c9b26
hex213fed1cb9

142806424761 has 160 divisors (see below), whose sum is σ = 301504896000. Its totient is φ = 64873768320.

The previous prime is 142806424757. The next prime is 142806424763. The reversal of 142806424761 is 167424608241.

142806424761 is a `hidden beast` number, since 1 + 42 + 80 + 64 + 2 + 476 + 1 = 666.

It is not a de Polignac number, because 142806424761 - 22 = 142806424757 is a prime.

It is a super-3 number, since 3×1428064247613 (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142806424763) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1494190 + ... + 1586888.

It is an arithmetic number, because the mean of its divisors is an integer number (1884405600).

Almost surely, 2142806424761 is an apocalyptic number.

142806424761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142806424761 is an abundant number, since it is smaller than the sum of its proper divisors (158698471239).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142806424761 is a wasteful number, since it uses less digits than its factorization.

142806424761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92761 (or 92752 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 142806424761 in words is "one hundred forty-two billion, eight hundred six million, four hundred twenty-four thousand, seven hundred sixty-one".

Divisors: 1 3 7 9 11 13 19 21 27 33 39 57 63 77 81 91 99 117 133 143 171 189 209 231 247 273 297 351 399 429 513 567 627 693 741 819 891 1001 1053 1197 1287 1463 1539 1729 1881 2079 2223 2457 2717 3003 3591 3861 4389 5187 5643 6237 6669 7371 8151 9009 10773 11583 13167 15561 16929 19019 20007 24453 27027 39501 46683 57057 73359 81081 92699 118503 140049 171171 220077 278097 513513 648893 834291 1019689 1205087 1540539 1761281 1946679 2502873 3059067 3615261 5283843 5840037 7137823 7508619 8435609 9177201 10845783 12328967 13255957 15851529 17520111 19374091 21413469 22896653 25306827 27531603 32537349 36986901 39767871 47554587 52560333 58122273 64240407 68689959 75920481 82594809 92791699 97612047 110960703 119303613 135618637 142663761 160276571 174366819 192721221 206069877 227761443 251863183 278375097 332882109 357910839 406855911 480829713 523100457 578163663 618209631 683284329 755589549 835125291 998646327 1073732517 1220567733 1442489139 1569301371 1763042281 1854628893 2266768647 2505375873 3661703199 4327467417 5289126843 6800305941 7516127619 10985109597 12982402251 15867380529 20400917823 47602141587 142806424761