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131345425402400 = 255211434755713259
BaseRepresentation
bin11101110111010100111101…
…011011001000101000100000
3122020001111111112021021110002
4131313110331123020220200
5114203430412400334100
61143203131101355132
736444252041012516
oct3567247533105040
9566044445237402
10131345425402400
113893a3115205a0
1212893759268aa8
135839a88757451
14246121c6b04b6
15102b8e143c2d5
hex77753d6c8a20

131345425402400 has 576 divisors, whose sum is σ = 366231019714560. Its totient is φ = 45573240115200.

The previous prime is 131345425402319. The next prime is 131345425402441. The reversal of 131345425402400 is 4204524543131.

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, 9906126971 + ... + 9906140229.

It is an arithmetic number, because the mean of its divisors is an integer number (635817742560).

Almost surely, 2131345425402400 is an apocalyptic number.

131345425402400 is a gapful number since it is divisible by the number (10) 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 131345425402400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183115509857280).

131345425402400 is an abundant number, since it is smaller than the sum of its proper divisors (234885594312160).

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

131345425402400 is a wasteful number, since it uses less digits than its factorization.

131345425402400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13937 (or 13924 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 131345425402400 its reverse (4204524543131), we get a palindrome (135549949945531).

The spelling of 131345425402400 in words is "one hundred thirty-one trillion, three hundred forty-five billion, four hundred twenty-five million, four hundred two thousand, four hundred".