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30019368 = 2337179223
BaseRepresentation
bin111001010000…
…0111100101000
32002111010211110
41302200330220
530141104433
62551230320
7513106011
oct162407450
962433743
1030019368
1115a43aa5
12a0783a0
1362b0a52
143db6008
15297e963
hex1ca0f28

30019368 has 64 divisors (see below), whose sum is σ = 77414400. Its totient is φ = 9696960.

The previous prime is 30019343. The next prime is 30019387. The reversal of 30019368 is 86391003.

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 15 ways as a sum of consecutive naturals, for example, 134505 + ... + 134727.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 230019368 is an apocalyptic number.

It is an amenable number.

30019368 is an abundant number, since it is smaller than the sum of its proper divisors (47395032).

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

30019368 is a wasteful number, since it uses less digits than its factorization.

30019368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 30019368 is about 5478.9933381964. The cubic root of 30019368 is about 310.7901038542.

The spelling of 30019368 in words is "thirty million, nineteen thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 71 79 142 158 213 223 237 284 316 426 446 474 568 632 669 852 892 948 1338 1704 1784 1896 2676 5352 5609 11218 15833 16827 17617 22436 31666 33654 35234 44872 47499 52851 63332 67308 70468 94998 105702 126664 134616 140936 189996 211404 379992 422808 1250807 2501614 3752421 5003228 7504842 10006456 15009684 30019368