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15142311412 = 2279388112347
BaseRepresentation
bin11100001101000110…
…10101010111110100
31110002021221010020121
432012203111113310
5222002412431122
610542320141324
71044145344334
oct160643252764
943067833217
1015142311412
116470492758
122b27167844
1315741854a7
14a390ab0c4
155d9575bc7
hex3868d55f4

15142311412 has 24 divisors (see below), whose sum is σ = 26843564160. Its totient is φ = 7472786880.

The previous prime is 15142311409. The next prime is 15142311449. The reversal of 15142311412 is 21411324151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220223 + ... + 1232569.

It is an arithmetic number, because the mean of its divisors is an integer number (1118481840).

Almost surely, 215142311412 is an apocalyptic number.

It is an amenable number.

15142311412 is a deficient number, since it is larger than the sum of its proper divisors (11701252748).

15142311412 is a wasteful number, since it uses less digits than its factorization.

15142311412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16311 (or 16309 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

Adding to 15142311412 its reverse (21411324151), we get a palindrome (36553635563).

The spelling of 15142311412 in words is "fifteen billion, one hundred forty-two million, three hundred eleven thousand, four hundred twelve".

Divisors: 1 2 4 79 158 316 3881 7762 12347 15524 24694 49388 306599 613198 975413 1226396 1950826 3901652 47918707 95837414 191674828 3785577853 7571155706 15142311412