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204163704031 = 743678284731
BaseRepresentation
bin1011111000100100011…
…0101110010011011111
3201111222112000202122211
42332021012232103133
511321111402012111
6233442544421251
720515236564550
oct2761106562337
9644875022584
10204163704031
11796490a7711
123369a017827
1316338b2a281
149c4b08a327
15549dc84521
hex2f891ae4df

204163704031 has 8 divisors (see below), whose sum is σ = 238756225664. Its totient is φ = 170927751960.

The previous prime is 204163704001. The next prime is 204163704053. The reversal of 204163704031 is 130407361402.

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

It is not a de Polignac number, because 204163704031 - 225 = 204130149599 is a prime.

It is a super-2 number, since 2×2041637040312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204163703984 and 204163704002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204163704001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339142065 + ... + 339142666.

It is an arithmetic number, because the mean of its divisors is an integer number (29844528208).

Almost surely, 2204163704031 is an apocalyptic number.

204163704031 is a deficient number, since it is larger than the sum of its proper divisors (34592521633).

204163704031 is an equidigital number, since it uses as much as digits as its factorization.

204163704031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678284781.

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 204163704031 in words is "two hundred four billion, one hundred sixty-three million, seven hundred four thousand, thirty-one".

Divisors: 1 7 43 301 678284731 4747993117 29166243433 204163704031