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231534041022 = 23235023367273
BaseRepresentation
bin1101011110100010000…
…0010001011110111110
3211010122000010221112200
43113220200101132332
512243140203303042
6254210522012330
722504425606444
oct3275040213676
9733560127480
10231534041022
118a213a25a29
1238a583470a6
1318aab46494b
14b2c6170b94
156051abdc4c
hex35e88117be

231534041022 has 24 divisors (see below), whose sum is σ = 501672778464. Its totient is φ = 77175599904.

The previous prime is 231534040993. The next prime is 231534041027. The reversal of 231534041022 is 220140435132.

231534041022 is a `hidden beast` number, since 2 + 3 + 153 + 404 + 102 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231534041027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446778 + ... + 814050.

It is an arithmetic number, because the mean of its divisors is an integer number (20903032436).

Almost surely, 2231534041022 is an apocalyptic number.

231534041022 is an abundant number, since it is smaller than the sum of its proper divisors (270138737442).

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

231534041022 is a wasteful number, since it uses less digits than its factorization.

231534041022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402304 (or 402301 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 231534041022 its reverse (220140435132), we get a palindrome (451674476154).

The spelling of 231534041022 in words is "two hundred thirty-one billion, five hundred thirty-four million, forty-one thousand, twenty-two".

Divisors: 1 2 3 6 9 18 35023 70046 105069 210138 315207 367273 630414 734546 1101819 2203638 3305457 6610914 12863002279 25726004558 38589006837 77178013674 115767020511 231534041022