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72710942 = 2120130271
BaseRepresentation
bin1000101010101…
…11101100011110
312001211002122212
410111113230132
5122103222232
611114240422
71542014153
oct425275436
9161732585
1072710942
1138052897
1220426112
13120aa735
14992a22a
1565b3eb2
hex4557b1e

72710942 has 8 divisors (see below), whose sum is σ = 109160832. Its totient is φ = 36324000.

The previous prime is 72710933. The next prime is 72710959. The reversal of 72710942 is 24901727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 72710899 and 72710908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12734 + ... + 17537.

It is an arithmetic number, because the mean of its divisors is an integer number (13645104).

Almost surely, 272710942 is an apocalyptic number.

72710942 is a deficient number, since it is larger than the sum of its proper divisors (36449890).

72710942 is a wasteful number, since it uses less digits than its factorization.

72710942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31474.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 72710942 is about 8527.0711267117. The cubic root of 72710942 is about 417.3815591453.

The spelling of 72710942 in words is "seventy-two million, seven hundred ten thousand, nine hundred forty-two".

Divisors: 1 2 1201 2402 30271 60542 36355471 72710942