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70938025 = 5217832011
BaseRepresentation
bin1000011101001…
…10110110101001
311221111000200021
410032212312221
5121130004100
611012240441
71520651254
oct416466651
9157430607
1070938025
1137051874
121b910121
1311909782
1495c809b
156363a1a
hex43a6da9

70938025 has 24 divisors (see below), whose sum is σ = 94306464. Its totient is φ = 52742400.

The previous prime is 70937987. The next prime is 70938029. The reversal of 70938025 is 52083907.

It is a de Polignac number, because none of the positive numbers 2k-70938025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70938029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34270 + ... + 36280.

It is an arithmetic number, because the mean of its divisors is an integer number (3929436).

Almost surely, 270938025 is an apocalyptic number.

It is an amenable number.

70938025 is a deficient number, since it is larger than the sum of its proper divisors (23368439).

70938025 is a wasteful number, since it uses less digits than its factorization.

70938025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 70938025 is about 8422.4714306431. The cubic root of 70938025 is about 413.9612576253.

The spelling of 70938025 in words is "seventy million, nine hundred thirty-eight thousand, twenty-five".

Divisors: 1 5 17 25 83 85 415 425 1411 2011 2075 7055 10055 34187 35275 50275 166913 170935 834565 854675 2837521 4172825 14187605 70938025