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30445708 = 22172915439
BaseRepresentation
bin111010000100…
…1000010001100
32010021210122211
41310021002030
530243230313
63004320204
7516532666
oct164110214
963253584
1030445708
1116205347
12a243064
1363ccb17
144087536
152a15e3d
hex1d0908c

30445708 has 24 divisors (see below), whose sum is σ = 58363200. Its totient is φ = 13832448.

The previous prime is 30445699. The next prime is 30445717. The reversal of 30445708 is 80754403.

It is an interprime number because it is at equal distance from previous prime (30445699) and next prime (30445717).

It is a super-2 number, since 2×304457082 = 1853882271242528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30445708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5748 + ... + 9691.

It is an arithmetic number, because the mean of its divisors is an integer number (2431800).

Almost surely, 230445708 is an apocalyptic number.

It is an amenable number.

30445708 is a deficient number, since it is larger than the sum of its proper divisors (27917492).

30445708 is a wasteful number, since it uses less digits than its factorization.

30445708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15489 (or 15487 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 30445708 is about 5517.7629525017. The cubic root of 30445708 is about 312.2544904774.

The spelling of 30445708 in words is "thirty million, four hundred forty-five thousand, seven hundred eight".

Divisors: 1 2 4 17 29 34 58 68 116 493 986 1972 15439 30878 61756 262463 447731 524926 895462 1049852 1790924 7611427 15222854 30445708