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25201000002 = 237159157277
BaseRepresentation
bin10111011110000110…
…001011111001000010
32102001022010102222110
4113132012023321002
5403102424000002
615324400520150
71551334652133
oct273606137102
972038112873
1025201000002
11a762342332
124a73920056
1324b8080a29
141310d49c8a
159c7677e6c
hex5de18be42

25201000002 has 16 divisors (see below), whose sum is σ = 51111888192. Its totient is φ = 8282018640.

The previous prime is 25200999997. The next prime is 25201000003. The reversal of 25201000002 is 20000010252.

It is a super-2 number, since 2×252010000022 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25201000003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29578213 + ... + 29579064.

It is an arithmetic number, because the mean of its divisors is an integer number (3194493012).

Almost surely, 225201000002 is an apocalyptic number.

25201000002 is an abundant number, since it is smaller than the sum of its proper divisors (25910888190).

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

25201000002 is a wasteful number, since it uses less digits than its factorization.

25201000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59157353.

The product of its (nonzero) digits is 40, while the sum is 12.

Adding to 25201000002 its reverse (20000010252), we get a palindrome (45201010254).

The spelling of 25201000002 in words is "twenty-five billion, two hundred one million, two", and thus it is an aban number.

Divisors: 1 2 3 6 71 142 213 426 59157277 118314554 177471831 354943662 4200166667 8400333334 12600500001 25201000002