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620960525 = 52217911399
BaseRepresentation
bin100101000000110…
…001101100001101
31121021110001200222
4211000301230031
52232431214100
6141341201125
721250035353
oct4500615415
91537401628
10620960525
11299574919
12153b601a5
139b857283
145c6817d3
15397ad485
hex25031b0d

620960525 has 12 divisors (see below), whose sum is σ = 770412000. Its totient is φ = 496496880.

The previous prime is 620960503. The next prime is 620960563. The reversal of 620960525 is 525069026.

It is a de Polignac number, because none of the positive numbers 2k-620960525 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48776 + ... + 60174.

It is an arithmetic number, because the mean of its divisors is an integer number (64201000).

Almost surely, 2620960525 is an apocalyptic number.

It is an amenable number.

620960525 is a deficient number, since it is larger than the sum of its proper divisors (149451475).

620960525 is a wasteful number, since it uses less digits than its factorization.

620960525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13588 (or 13583 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 620960525 is about 24919.0795375752. The cubic root of 620960525 is about 853.1420160122.

The spelling of 620960525 in words is "six hundred twenty million, nine hundred sixty thousand, five hundred twenty-five".

Divisors: 1 5 25 2179 10895 11399 54475 56995 284975 24838421 124192105 620960525