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157475636660 = 2259838009951
BaseRepresentation
bin1001001010101001000…
…1111000010110110100
3120001110202012012111102
42102222101320112310
510040002230333120
6200202053225232
714243251553216
oct2225221702664
9501422165442
10157475636660
116086a989671
122662a332218
1311b08289cc4
14789c5605b6
15416a04cd75
hex24aa4785b4

157475636660 has 24 divisors (see below), whose sum is σ = 331035296256. Its totient is φ = 62926167200.

The previous prime is 157475636651. The next prime is 157475636663. The reversal of 157475636660 is 66636574751.

It is a super-2 number, since 2×1574756366602 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157475636596 and 157475636605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157475636663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3985316 + ... + 4024635.

It is an arithmetic number, because the mean of its divisors is an integer number (13793137344).

Almost surely, 2157475636660 is an apocalyptic number.

157475636660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157475636660 is an abundant number, since it is smaller than the sum of its proper divisors (173559659596).

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

157475636660 is a wasteful number, since it uses less digits than its factorization.

157475636660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010943 (or 8010941 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 157475636660 in words is "one hundred fifty-seven billion, four hundred seventy-five million, six hundred thirty-six thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 983 1966 3932 4915 9830 19660 8009951 16019902 32039804 40049755 80099510 160199020 7873781833 15747563666 31495127332 39368909165 78737818330 157475636660