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12695740 = 2253120477
BaseRepresentation
bin110000011011…
…100010111100
3212220000021121
4300123202330
511222230430
61132040324
7212624551
oct60334274
925800247
1012695740
117191552
1243030a4
132826895
141986a28
1511aba7a
hexc1b8bc

12695740 has 24 divisors (see below), whose sum is σ = 27522432. Its totient is φ = 4914240.

The previous prime is 12695737. The next prime is 12695759. The reversal of 12695740 is 4759621.

12695740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×126957402 = 322363628295200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12695696 and 12695705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9619 + ... + 10858.

It is an arithmetic number, because the mean of its divisors is an integer number (1146768).

Almost surely, 212695740 is an apocalyptic number.

12695740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12695740 is an abundant number, since it is smaller than the sum of its proper divisors (14826692).

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

12695740 is a wasteful number, since it uses less digits than its factorization.

12695740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20517 (or 20515 counting only the distinct ones).

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

The square root of 12695740 is about 3563.1081936983. The cubic root of 12695740 is about 233.2845657718.

The spelling of 12695740 in words is "twelve million, six hundred ninety-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 20477 40954 81908 102385 204770 409540 634787 1269574 2539148 3173935 6347870 12695740