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492054025138 = 21318925154813
BaseRepresentation
bin1110010100100001011…
…01001001001110110010
31202001002002110100220021
413022100231021032302
531030211312301023
61014014013234054
750356362130024
oct7122055111662
91661062410807
10492054025138
1117a75173aa25
127b443a9292a
1337528b721c0
1419b5bbc0014
15cbed25a35d
hex7290b493b2

492054025138 has 8 divisors (see below), whose sum is σ = 794856502188. Its totient is φ = 227101857744.

The previous prime is 492054025121. The next prime is 492054025163. The reversal of 492054025138 is 831520450294.

It can be written as a sum of positive squares in 2 ways, for example, as 491831508249 + 222516889 = 701307^2 + 14917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 492054025094 and 492054025103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9462577381 + ... + 9462577432.

Almost surely, 2492054025138 is an apocalyptic number.

492054025138 is a deficient number, since it is larger than the sum of its proper divisors (302802477050).

492054025138 is a wasteful number, since it uses less digits than its factorization.

492054025138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18925154828.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 492054025138 in words is "four hundred ninety-two billion, fifty-four million, twenty-five thousand, one hundred thirty-eight".

Divisors: 1 2 13 26 18925154813 37850309626 246027012569 492054025138