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25250015130 = 235841667171
BaseRepresentation
bin10111100001000001…
…001010011110011010
32102011201100200002120
4113201001022132122
5403203000441010
615333311242110
71552501405314
oct274101123632
972151320076
1025250015130
11a787a800aa
124a88219336
1324c5282a72
1413176687b4
159cbb0ae70
hex5e104a79a

25250015130 has 16 divisors (see below), whose sum is σ = 60600036384. Its totient is φ = 6733337360.

The previous prime is 25250015111. The next prime is 25250015137. The reversal of 25250015130 is 3151005252.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25250015130.

It is not an unprimeable number, because it can be changed into a prime (25250015137) 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, 420833556 + ... + 420833615.

It is an arithmetic number, because the mean of its divisors is an integer number (3787502274).

Almost surely, 225250015130 is an apocalyptic number.

25250015130 is an abundant number, since it is smaller than the sum of its proper divisors (35350021254).

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

25250015130 is a wasteful number, since it uses less digits than its factorization.

25250015130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841667181.

The product of its (nonzero) digits is 1500, while the sum is 24.

The spelling of 25250015130 in words is "twenty-five billion, two hundred fifty million, fifteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 841667171 1683334342 2525001513 4208335855 5050003026 8416671710 12625007565 25250015130