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13131401400 = 23335213214389
BaseRepresentation
bin11000011101011000…
…10100100010111000
31020220011001022022000
430032230110202320
5203343114321100
610011003301000
7643260033045
oct141654244270
936804038260
1013131401400
115629374257
12266581a760
13131368b300
148c7db21cc
1551cc5a900
hex30eb148b8

13131401400 has 288 divisors, whose sum is σ = 48980682000. Its totient is φ = 3232120320.

The previous prime is 13131401369. The next prime is 13131401419. The reversal of 13131401400 is 410413131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 905406 + ... + 919794.

Almost surely, 213131401400 is an apocalyptic number.

13131401400 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 13131401400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24490341000).

13131401400 is an abundant number, since it is smaller than the sum of its proper divisors (35849280600).

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

13131401400 is a wasteful number, since it uses less digits than its factorization.

13131401400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440 (or 14412 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13131401400 its reverse (410413131), we get a palindrome (13541814531).

The spelling of 13131401400 in words is "thirteen billion, one hundred thirty-one million, four hundred one thousand, four hundred".