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72940696 = 23193111543
BaseRepresentation
bin1000101100011…
…11110010011000
312002020202211021
410112033302120
5122133100241
611123212224
71543662043
oct426176230
9162222737
1072940696
113819a474
1220517074
131215b19a
149989c5a
15660c0d1
hex458fc98

72940696 has 32 divisors (see below), whose sum is σ = 144518400. Its totient is φ = 34417440.

The previous prime is 72940691. The next prime is 72940711. The reversal of 72940696 is 69604927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72940691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46501 + ... + 48043.

It is an arithmetic number, because the mean of its divisors is an integer number (4516200).

Almost surely, 272940696 is an apocalyptic number.

72940696 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

72940696 is a deficient number, since it is larger than the sum of its proper divisors (71577704).

72940696 is a wasteful number, since it uses less digits than its factorization.

72940696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 72940696 is about 8540.5325360893. The cubic root of 72940696 is about 417.8207147619.

The spelling of 72940696 in words is "seventy-two million, nine hundred forty thousand, six hundred ninety-six".

Divisors: 1 2 4 8 19 38 76 152 311 622 1244 1543 2488 3086 5909 6172 11818 12344 23636 29317 47272 58634 117268 234536 479873 959746 1919492 3838984 9117587 18235174 36470348 72940696