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142688245557 = 311131093139749
BaseRepresentation
bin1000010011100011100…
…0011101011100110101
3111122022012002220101110
42010320320131130311
54314211142324212
6145314452145233
713210643034624
oct2047070353465
9448265086343
10142688245557
1155571881890
12237a2008219
13105bc7c1440
146c986816bb
153aa1c33a3c
hex2138e1d735

142688245557 has 64 divisors (see below), whose sum is σ = 226306080000. Its totient is φ = 78832465920.

The previous prime is 142688245523. The next prime is 142688245571. The reversal of 142688245557 is 755542886241.

It is a happy number.

142688245557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142688245557 - 26 = 142688245493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142688245497 and 142688245506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142688245057) 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 63 ways as a sum of consecutive naturals, for example, 14631319 + ... + 14641067.

It is an arithmetic number, because the mean of its divisors is an integer number (3536032500).

Almost surely, 2142688245557 is an apocalyptic number.

It is an amenable number.

142688245557 is a deficient number, since it is larger than the sum of its proper divisors (83617834443).

142688245557 is a wasteful number, since it uses less digits than its factorization.

142688245557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10198.

The product of its digits is 21504000, while the sum is 57.

The spelling of 142688245557 in words is "one hundred forty-two billion, six hundred eighty-eight million, two hundred forty-five thousand, five hundred fifty-seven".

Divisors: 1 3 11 13 33 39 109 143 313 327 429 939 1199 1417 3443 3597 4069 4251 9749 10329 12207 15587 29247 34117 44759 46761 102351 107239 126737 134277 321717 375287 380211 443521 1062641 1125861 1330563 1394107 3051437 3187923 4182321 4878731 9154311 11689051 13814333 14636193 33565807 35067153 39668681 41442999 100697421 119006043 151957663 332606633 436355491 455872989 997819899 1309066473 3658672963 4323886229 10976018889 12971658687 47562748519 142688245557