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40694680 = 2351378259
BaseRepresentation
bin1001101100111…
…1001110011000
32211120111121101
42123033032120
540404212210
64012121144
71002620245
oct233171630
984514541
1040694680
1120a75574
12117661b4
13857aac0
1455945cc
15388ca3a
hex26cf398

40694680 has 32 divisors (see below), whose sum is σ = 98607600. Its totient is φ = 15025536.

The previous prime is 40694677. The next prime is 40694699. The reversal of 40694680 is 8649604.

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, 38610 + ... + 39649.

Almost surely, 240694680 is an apocalyptic number.

40694680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40694680 is an abundant number, since it is smaller than the sum of its proper divisors (57912920).

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

40694680 is a wasteful number, since it uses less digits than its factorization.

40694680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78283 (or 78279 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 40694680 is about 6379.2381990329. The cubic root of 40694680 is about 343.9636476819.

The spelling of 40694680 in words is "forty million, six hundred ninety-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 78259 156518 313036 391295 626072 782590 1017367 1565180 2034734 3130360 4069468 5086835 8138936 10173670 20347340 40694680