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157427490101928 = 23383241327924749
BaseRepresentation
bin100011110010110111110001…
…101000000001101010101000
3202122101220212110111000021220
4203302313301220001222220
5131113242444431230203
61314453105054102040
745105521651011434
oct4362676150015250
9678356773430256
10157427490101928
1146185695044402
12157a6603aaa920
1369ac46bbb1177
142ac37617939c4
1513300b4b1c653
hex8f2df1a01aa8

157427490101928 has 64 divisors (see below), whose sum is σ = 399963259080000. Its totient is φ = 51628472325120.

The previous prime is 157427490101909. The next prime is 157427490101929. The reversal of 157427490101928 is 829101094724751.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (157427490101929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163482303 + ... + 164442446.

It is an arithmetic number, because the mean of its divisors is an integer number (6249425923125).

Almost surely, 2157427490101928 is an apocalyptic number.

It is an amenable number.

157427490101928 is an abundant number, since it is smaller than the sum of its proper divisors (242535768978072).

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

157427490101928 is a wasteful number, since it uses less digits than its factorization.

157427490101928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327925082 (or 327925078 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 157427490101928 in words is "one hundred fifty-seven trillion, four hundred twenty-seven billion, four hundred ninety million, one hundred one thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 83 166 241 249 332 482 498 664 723 964 996 1446 1928 1992 2892 5784 20003 40006 60009 80012 120018 160024 240036 480072 327924749 655849498 983774247 1311698996 1967548494 2623397992 3935096988 7870193976 27217754167 54435508334 79029864509 81653262501 108871016668 158059729018 163306525002 217742033336 237089593527 316119458036 326613050004 474179187054 632238916072 653226100008 948358374108 1896716748216 6559478754247 13118957508494 19678436262741 26237915016988 39356872525482 52475830033976 78713745050964 157427490101928