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42821007141 = 31121731223841
BaseRepresentation
bin100111111000010101…
…001011011100100101
311002112021021112210110
4213320111023130211
51200144134212031
631401030443233
73044100361263
oct477025133445
9132467245713
1042821007141
1117184384500
128370803519
134065656463
1421030dd433
1511a94c0c46
hex9f854b725

42821007141 has 48 divisors (see below), whose sum is σ = 68592351744. Its totient is φ = 23637504000.

The previous prime is 42821007133. The next prime is 42821007149. The reversal of 42821007141 is 14170012824.

It is an interprime number because it is at equal distance from previous prime (42821007133) and next prime (42821007149).

It is not a de Polignac number, because 42821007141 - 23 = 42821007133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42821007099 and 42821007108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42821007149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79381 + ... + 303221.

It is an arithmetic number, because the mean of its divisors is an integer number (1429007328).

Almost surely, 242821007141 is an apocalyptic number.

It is an amenable number.

42821007141 is a deficient number, since it is larger than the sum of its proper divisors (25771344603).

42821007141 is a wasteful number, since it uses less digits than its factorization.

42821007141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223914 (or 223903 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

Adding to 42821007141 its reverse (14170012824), we get a palindrome (56991019965).

The spelling of 42821007141 in words is "forty-two billion, eight hundred twenty-one million, seven thousand, one hundred forty-one".

Divisors: 1 3 11 17 31 33 51 93 121 187 341 363 527 561 1023 1581 2057 3751 5797 6171 11253 17391 63767 191301 223841 671523 2462251 3805297 6939071 7386753 11415891 20817213 27084761 41858267 76329781 81254283 117964207 125574801 228989343 353892621 460440937 839627591 1297606277 1381322811 2518882773 3892818831 14273669047 42821007141