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19245028 = 2211437387
BaseRepresentation
bin100100101101…
…0011111100100
31100012202012211
41021122133210
514411320103
61524253204
7322402645
oct111323744
940182184
1019245028
11a955090
126541204
133caa8ba
1427ad6cc
151a5236d
hex125a7e4

19245028 has 12 divisors (see below), whose sum is σ = 36740592. Its totient is φ = 8747720.

The previous prime is 19245019. The next prime is 19245077. The reversal of 19245028 is 82054291.

It is a super-2 number, since 2×192450282 = 740742205441568, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 218650 + ... + 218737.

It is an arithmetic number, because the mean of its divisors is an integer number (3061716).

Almost surely, 219245028 is an apocalyptic number.

It is an amenable number.

19245028 is a deficient number, since it is larger than the sum of its proper divisors (17495564).

19245028 is a wasteful number, since it uses less digits than its factorization.

19245028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437402 (or 437400 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 19245028 is about 4386.9155451182. The cubic root of 19245028 is about 267.9823445709.

The spelling of 19245028 in words is "nineteen million, two hundred forty-five thousand, twenty-eight".

Divisors: 1 2 4 11 22 44 437387 874774 1749548 4811257 9622514 19245028