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538670825 = 52711225439
BaseRepresentation
bin100000000110110…
…111011011101001
31101112121022110022
4200012313123221
52100344431300
6125241330225
716230424610
oct4006673351
91345538408
10538670825
1125707a400
12130496975
13877a4944
1451780877
1532456285
hex201b76e9

538670825 has 36 divisors (see below), whose sum is σ = 839112960. Its totient is φ = 335781600.

The previous prime is 538670813. The next prime is 538670851. The reversal of 538670825 is 528076835.

538670825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 538670825 - 28 = 538670569 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8456 + ... + 33894.

Almost surely, 2538670825 is an apocalyptic number.

538670825 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

538670825 is a deficient number, since it is larger than the sum of its proper divisors (300442135).

538670825 is a wasteful number, since it uses less digits than its factorization.

538670825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25478 (or 25462 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 538670825 is about 23209.2831642858. The cubic root of 538670825 is about 813.6565997333.

The spelling of 538670825 in words is "five hundred thirty-eight million, six hundred seventy thousand, eight hundred twenty-five".

Divisors: 1 5 7 11 25 35 55 77 121 175 275 385 605 847 1925 3025 4235 21175 25439 127195 178073 279829 635975 890365 1399145 1958803 3078119 4451825 6995725 9794015 15390595 21546833 48970075 76952975 107734165 538670825