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25142541312 = 2103721959149
BaseRepresentation
bin10111011010100111…
…001011110000000000
32101220020010102201210
4113122213023300000
5402442442310222
615314511530120
71550025034500
oct273247136000
971806112653
1025142541312
11a732344469
124a58229940
1324a8c234a5
14130728da00
159c247bd0c
hex5da9cbc00

25142541312 has 528 divisors, whose sum is σ = 84008880000. Its totient is φ = 6645252096.

The previous prime is 25142541311. The next prime is 25142541317. The reversal of 25142541312 is 21314524152.

It is a self number, because there is not a number n which added to its sum of digits gives 25142541312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25142541311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168741814 + ... + 168741962.

Almost surely, 225142541312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25142541312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42004440000).

25142541312 is an abundant number, since it is smaller than the sum of its proper divisors (58866338688).

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

25142541312 is a wasteful number, since it uses less digits than its factorization.

25142541312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 239 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The spelling of 25142541312 in words is "twenty-five billion, one hundred forty-two million, five hundred forty-one thousand, three hundred twelve".