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204401311293 = 31791858320483
BaseRepresentation
bin1011111001011101000…
…1000111111000111101
3201112121002010110112210
42332113101013320331
511322103213430133
6233522313251033
720524153323234
oct2762721077075
9645532113483
10204401311293
1179760236553
1233745703a79
1316376120c9a
149c7085bb1b
1554b4a6b763
hex2f97447e3d

204401311293 has 16 divisors (see below), whose sum is σ = 274085752320. Its totient is φ = 135492362544.

The previous prime is 204401311277. The next prime is 204401311313. The reversal of 204401311293 is 392113104402.

It is not a de Polignac number, because 204401311293 - 24 = 204401311277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204401311293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204401311253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9968830 + ... + 9989312.

It is an arithmetic number, because the mean of its divisors is an integer number (17130359520).

Almost surely, 2204401311293 is an apocalyptic number.

It is an amenable number.

204401311293 is a deficient number, since it is larger than the sum of its proper divisors (69684441027).

204401311293 is a wasteful number, since it uses less digits than its factorization.

204401311293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39248.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 204401311293 its reverse (392113104402), we get a palindrome (596514415695).

The spelling of 204401311293 in words is "two hundred four billion, four hundred one million, three hundred eleven thousand, two hundred ninety-three".

Divisors: 1 3 179 537 18583 20483 55749 61449 3326357 3666457 9979071 10999371 380635589 1141906767 68133770431 204401311293