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204130630031 = 6110332489357
BaseRepresentation
bin1011111000011100100…
…0100011100110001111
3201111220012210102122212
42332013020203212033
511321024420130111
6233435403501035
720514355504106
oct2760710434617
9644805712585
10204130630031
1179631467729
123368ab2777b
131633201a063
149c4691b03d
15549adee98b
hex2f8722398f

204130630031 has 8 divisors (see below), whose sum is σ = 209491380384. Its totient is φ = 198834858720.

The previous prime is 204130629953. The next prime is 204130630043. The reversal of 204130630031 is 130036031402.

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

It is a cyclic number.

It is not a de Polignac number, because 204130630031 - 210 = 204130629007 is a prime.

It is a super-2 number, since 2×2041306300312 (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 = 204130629979 and 204130630006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204130630061) 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, 16238396 + ... + 16250961.

It is an arithmetic number, because the mean of its divisors is an integer number (26186422548).

Almost surely, 2204130630031 is an apocalyptic number.

204130630031 is a deficient number, since it is larger than the sum of its proper divisors (5360750353).

204130630031 is a wasteful number, since it uses less digits than its factorization.

204130630031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32489521.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 204130630031 its reverse (130036031402), we get a palindrome (334166661433).

The spelling of 204130630031 in words is "two hundred four billion, one hundred thirty million, six hundred thirty thousand, thirty-one".

Divisors: 1 61 103 6283 32489357 1981850777 3346403771 204130630031