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30739692 = 2234754503
BaseRepresentation
bin111010101000…
…0110011101100
32010211201221010
41311100303230
530332132232
63014505220
7522166044
oct165206354
963751833
1030739692
1116396205
12a365210
1364a3889
144122724
152a730cc
hex1d50cec

30739692 has 24 divisors (see below), whose sum is σ = 73253376. Its totient is φ = 10028368.

The previous prime is 30739691. The next prime is 30739699. The reversal of 30739692 is 29693703.

It is a self number, because there is not a number n which added to its sum of digits gives 30739692.

It is not an unprimeable number, because it can be changed into a prime (30739691) 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 7 ways as a sum of consecutive naturals, for example, 26688 + ... + 27815.

It is an arithmetic number, because the mean of its divisors is an integer number (3052224).

Almost surely, 230739692 is an apocalyptic number.

It is an amenable number.

30739692 is an abundant number, since it is smaller than the sum of its proper divisors (42513684).

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

30739692 is a wasteful number, since it uses less digits than its factorization.

30739692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54557 (or 54555 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 30739692 is about 5544.3387342405. The cubic root of 30739692 is about 313.2563167685.

The spelling of 30739692 in words is "thirty million, seven hundred thirty-nine thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 54503 109006 163509 218012 327018 654036 2561641 5123282 7684923 10246564 15369846 30739692