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30087392 = 251376863
BaseRepresentation
bin111001011000…
…1100011100000
32002121121010212
41302301203200
530200244032
62552513252
7513511226
oct162614340
962547125
1030087392
1115a90115
12a0ab828
1363059ba
143dd2b16
152994bb2
hex1cb18e0

30087392 has 24 divisors (see below), whose sum is σ = 59675616. Its totient is φ = 14931712.

The previous prime is 30087389. The next prime is 30087403. The reversal of 30087392 is 29378003.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953 + ... + 7815.

It is an arithmetic number, because the mean of its divisors is an integer number (2486484).

Almost surely, 230087392 is an apocalyptic number.

30087392 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30087392 is a deficient number, since it is larger than the sum of its proper divisors (29588224).

30087392 is a wasteful number, since it uses less digits than its factorization.

30087392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7010 (or 7002 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 30087392 is about 5485.1975351850. The cubic root of 30087392 is about 311.0246772739.

The spelling of 30087392 in words is "thirty million, eighty-seven thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 32 137 274 548 1096 2192 4384 6863 13726 27452 54904 109808 219616 940231 1880462 3760924 7521848 15043696 30087392