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25013079020 = 2254243294757
BaseRepresentation
bin10111010010111001…
…010100101111101100
32101120012112001212002
4113102321110233230
5402211322012040
615254005031432
71543563443426
oct272271245754
971505461762
1025013079020
11a67625a536
124a209b5578
132488165697
1412d3dcd816
159b5e07a15
hex5d2e54bec

25013079020 has 24 divisors (see below), whose sum is σ = 52540023984. Its totient is φ = 10002839616.

The previous prime is 25013079019. The next prime is 25013079029. The reversal of 25013079020 is 2097031052.

It is not an unprimeable number, because it can be changed into a prime (25013079029) 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, 62519 + ... + 232238.

It is an arithmetic number, because the mean of its divisors is an integer number (2189167666).

Almost surely, 225013079020 is an apocalyptic number.

25013079020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25013079020 is an abundant number, since it is smaller than the sum of its proper divisors (27526944964).

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

25013079020 is a wasteful number, since it uses less digits than its factorization.

25013079020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299009 (or 299007 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The spelling of 25013079020 in words is "twenty-five billion, thirteen million, seventy-nine thousand, twenty".

Divisors: 1 2 4 5 10 20 4243 8486 16972 21215 42430 84860 294757 589514 1179028 1473785 2947570 5895140 1250653951 2501307902 5002615804 6253269755 12506539510 25013079020