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72976396 = 2235351683
BaseRepresentation
bin1000101100110…
…00100000001100
312002022120210111
410112120200030
5122140221041
611124045404
71544201113
oct426304014
9162276714
1072976396
1138214279
1220533864
13121714cc
149998c7a
156617981
hex459880c

72976396 has 12 divisors (see below), whose sum is σ = 128072952. Its totient is φ = 36384128.

The previous prime is 72976391. The next prime is 72976399. The reversal of 72976396 is 69367927.

It is not an unprimeable number, because it can be changed into a prime (72976391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24430 + ... + 27253.

It is an arithmetic number, because the mean of its divisors is an integer number (10672746).

Almost surely, 272976396 is an apocalyptic number.

It is an amenable number.

72976396 is a deficient number, since it is larger than the sum of its proper divisors (55096556).

72976396 is a wasteful number, since it uses less digits than its factorization.

72976396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52040 (or 52038 counting only the distinct ones).

The product of its digits is 857304, while the sum is 49.

The square root of 72976396 is about 8542.6223140204. The cubic root of 72976396 is about 417.8888695209. Note that the first 4 decimals are identical.

The spelling of 72976396 in words is "seventy-two million, nine hundred seventy-six thousand, three hundred ninety-six".

Divisors: 1 2 4 353 706 1412 51683 103366 206732 18244099 36488198 72976396