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25010345012 = 2219839392233
BaseRepresentation
bin10111010010101110…
…111001010000110100
32101120000101011111112
4113102232321100310
5402210122020022
615253430254152
71543531265522
oct272256712064
971500334445
1025010345012
11a674762424
124a1bab7358
132487719123
1412d38bb312
159b5a678e2
hex5d2bb9434

25010345012 has 24 divisors (see below), whose sum is σ = 46126718400. Its totient is φ = 11832854976.

The previous prime is 25010345011. The next prime is 25010345023. The reversal of 25010345012 is 21054301052.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25010345011) 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, 132353 + ... + 259880.

It is an arithmetic number, because the mean of its divisors is an integer number (1921946600).

Almost surely, 225010345012 is an apocalyptic number.

It is an amenable number.

25010345012 is a deficient number, since it is larger than the sum of its proper divisors (21116373388).

25010345012 is a wasteful number, since it uses less digits than its factorization.

25010345012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393095 (or 393093 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 25010345012 its reverse (21054301052), we get a palindrome (46064646064).

The spelling of 25010345012 in words is "twenty-five billion, ten million, three hundred forty-five thousand, twelve".

Divisors: 1 2 4 19 38 76 839 1678 3356 15941 31882 63764 392233 784466 1568932 7452427 14904854 29809708 329083487 658166974 1316333948 6252586253 12505172506 25010345012