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231356926080 = 27335721973197
BaseRepresentation
bin1101011101110111110…
…0101000100010000000
3211010011122212120112000
43113131330220202000
512242304333113310
6254141153504000
722500145265400
oct3273574504200
9733148776460
10231356926080
118a132a53945
1238a08b72000
1318a80860cc7
14b2aa828800
1560412854c0
hex35ddf28880

231356926080 has 1536 divisors, whose sum is σ = 1022240736000. Its totient is φ = 49161240576.

The previous prime is 231356926079. The next prime is 231356926081. The reversal of 231356926080 is 80629653132.

231356926080 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 569 + 2 + 6 + 0 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (231356926079) and next prime (231356926081).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231356926081) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1174400542 + ... + 1174400738.

Almost surely, 2231356926080 is an apocalyptic number.

231356926080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231356926080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511120368000).

231356926080 is an abundant number, since it is smaller than the sum of its proper divisors (790883809920).

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

231356926080 is a wasteful number, since it uses less digits than its factorization.

231356926080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 231356926080 in words is "two hundred thirty-one billion, three hundred fifty-six million, nine hundred twenty-six thousand, eighty".