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72304958 = 21131106019
BaseRepresentation
bin1000100111101…
…00100100111110
312001001110202102
410103310210332
5122002224313
611101425102
71535403425
oct423644476
9161043672
1072304958
11378a5870
122026b192
1311c979cb
1498622bc
156533a58
hex44f493e

72304958 has 16 divisors (see below), whose sum is σ = 122135040. Its totient is φ = 31805400.

The previous prime is 72304957. The next prime is 72304997. The reversal of 72304958 is 85940327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72304951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52328 + ... + 53691.

It is an arithmetic number, because the mean of its divisors is an integer number (7633440).

Almost surely, 272304958 is an apocalyptic number.

72304958 is a deficient number, since it is larger than the sum of its proper divisors (49830082).

72304958 is a wasteful number, since it uses less digits than its factorization.

72304958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106063.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 72304958 is about 8503.2322089897. The cubic root of 72304958 is about 416.6032874977.

The spelling of 72304958 in words is "seventy-two million, three hundred four thousand, nine hundred fifty-eight".

Divisors: 1 2 11 22 31 62 341 682 106019 212038 1166209 2332418 3286589 6573178 36152479 72304958