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72300748 = 22131390399
BaseRepresentation
bin1000100111100…
…11100011001100
312001001020222111
410103303203030
5122002110443
611101353404
71535355232
oct423634314
9161036874
1072300748
11378a2693
1220268864
1311c95b10
149860952
15653269d
hex44f38cc

72300748 has 12 divisors (see below), whose sum is σ = 136259200. Its totient is φ = 33369552.

The previous prime is 72300743. The next prime is 72300751. The reversal of 72300748 is 84700327.

It is a super-2 number, since 2×723007482 = 10454796322719008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72300743) by changing a digit.

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, 695148 + ... + 695251.

Almost surely, 272300748 is an apocalyptic number.

It is an amenable number.

72300748 is a deficient number, since it is larger than the sum of its proper divisors (63958452).

72300748 is a wasteful number, since it uses less digits than its factorization.

72300748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390416 (or 1390414 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 72300748 is about 8502.9846524617. The cubic root of 72300748 is about 416.5952016811.

The spelling of 72300748 in words is "seventy-two million, three hundred thousand, seven hundred forty-eight".

Divisors: 1 2 4 13 26 52 1390399 2780798 5561596 18075187 36150374 72300748