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231454113660 = 223357211795211
BaseRepresentation
bin1101011110001110111…
…1010111111101111100
3211010102102202012211000
43113203233113331330
512243004223114120
6254154544530300
722502435335200
oct3274357277574
9733372665730
10231454113660
118a1828a4360
1238a35620990
1318a97a2b653
14b2b96c6b00
156049a81990
hex35e3bd7f7c

231454113660 has 288 divisors, whose sum is σ = 913794013440. Its totient is φ = 48094300800.

The previous prime is 231454113619. The next prime is 231454113679. The reversal of 231454113660 is 66311454132.

231454113660 is a `hidden beast` number, since 2 + 31 + 454 + 113 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 106546 + ... + 688665.

It is an arithmetic number, because the mean of its divisors is an integer number (3172895880).

Almost surely, 2231454113660 is an apocalyptic number.

231454113660 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 231454113660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456897006720).

231454113660 is an abundant number, since it is smaller than the sum of its proper divisors (682339899780).

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

231454113660 is a wasteful number, since it uses less digits than its factorization.

231454113660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795254 (or 795239 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 231454113660 its reverse (66311454132), we get a palindrome (297765567792).

The spelling of 231454113660 in words is "two hundred thirty-one billion, four hundred fifty-four million, one hundred thirteen thousand, six hundred sixty".