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72340748 = 2239294603
BaseRepresentation
bin1000100111111…
…01010100001100
312001010021211222
410103331110030
5122004400443
611102302512
71535612654
oct423752414
9161107758
1072340748
113791a747
1220287a38
1311cab09c
149871364
15653e468
hex44fd50c

72340748 has 12 divisors (see below), whose sum is σ = 126656040. Its totient is φ = 36153312.

The previous prime is 72340691. The next prime is 72340781. The reversal of 72340748 is 84704327.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13415 + ... + 18017.

It is an arithmetic number, because the mean of its divisors is an integer number (10554670).

Almost surely, 272340748 is an apocalyptic number.

It is an amenable number.

72340748 is a deficient number, since it is larger than the sum of its proper divisors (54315292).

72340748 is a wasteful number, since it uses less digits than its factorization.

72340748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8536 (or 8534 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 72340748 is about 8505.3364424930. The cubic root of 72340748 is about 416.6720138692.

The spelling of 72340748 in words is "seventy-two million, three hundred forty thousand, seven hundred forty-eight".

Divisors: 1 2 4 3929 4603 7858 9206 15716 18412 18085187 36170374 72340748