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30393672 = 2332355061
BaseRepresentation
bin111001111110…
…0010101001000
32010012011021120
41303330111020
530240044142
63003235240
7516225201
oct163742510
963164246
1030393672
111617a241
12a218b20
1363b222a
1440725a8
152a057ec
hex1cfc548

30393672 has 32 divisors (see below), whose sum is σ = 79289280. Its totient is φ = 9690560.

The previous prime is 30393667. The next prime is 30393683. The reversal of 30393672 is 27639303.

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 7 ways as a sum of consecutive naturals, for example, 26979 + ... + 28082.

It is an arithmetic number, because the mean of its divisors is an integer number (2477790).

Almost surely, 230393672 is an apocalyptic number.

It is an amenable number.

30393672 is an abundant number, since it is smaller than the sum of its proper divisors (48895608).

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

30393672 is a wasteful number, since it uses less digits than its factorization.

30393672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55093 (or 55089 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 30393672 is about 5513.0456192562. The cubic root of 30393672 is about 312.0764934075.

The spelling of 30393672 in words is "thirty million, three hundred ninety-three thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 276 552 55061 110122 165183 220244 330366 440488 660732 1266403 1321464 2532806 3799209 5065612 7598418 10131224 15196836 30393672