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72942708 = 2236078559
BaseRepresentation
bin1000101100100…
…00010001110100
312002020212120210
410112100101310
5122133131313
611123225420
71544000646
oct426202164
9162225523
1072942708
11381a0a33
1220518270
131215c087
14998a896
15660c9c3
hex4590474

72942708 has 12 divisors (see below), whose sum is σ = 170199680. Its totient is φ = 24314232.

The previous prime is 72942707. The next prime is 72942713. The reversal of 72942708 is 80724927.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72942707) 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, 3039268 + ... + 3039291.

Almost surely, 272942708 is an apocalyptic number.

It is an amenable number.

72942708 is an abundant number, since it is smaller than the sum of its proper divisors (97256972).

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

72942708 is a wasteful number, since it uses less digits than its factorization.

72942708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6078566 (or 6078564 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 72942708 is about 8540.6503265267. The cubic root of 72942708 is about 417.8245564561.

The spelling of 72942708 in words is "seventy-two million, nine hundred forty-two thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 6078559 12157118 18235677 24314236 36471354 72942708