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30225892 = 22371311559
BaseRepresentation
bin111001101001…
…1010111100100
32002212122010111
41303103113210
530214212032
62555502404
7514626064
oct163232744
962778114
1030225892
1116075184
12a157a04
136353a58
14402b3a4
1529c0c47
hex1cd35e4

30225892 has 24 divisors (see below), whose sum is σ = 54774720. Its totient is φ = 14582880.

The previous prime is 30225883. The next prime is 30225893. The reversal of 30225892 is 29852203.

It is not an unprimeable number, because it can be changed into a prime (30225893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18609 + ... + 20167.

It is an arithmetic number, because the mean of its divisors is an integer number (2282280).

Almost surely, 230225892 is an apocalyptic number.

It is an amenable number.

30225892 is a deficient number, since it is larger than the sum of its proper divisors (24548828).

30225892 is a wasteful number, since it uses less digits than its factorization.

30225892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 30225892 is about 5497.8079268014. The cubic root of 30225892 is about 311.5011890331.

The spelling of 30225892 in words is "thirty million, two hundred twenty-five thousand, eight hundred ninety-two".

Divisors: 1 2 4 37 74 131 148 262 524 1559 3118 4847 6236 9694 19388 57683 115366 204229 230732 408458 816916 7556473 15112946 30225892