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30669994 = 2232983277
BaseRepresentation
bin111010011111…
…1110010101010
32010201012022201
41310333302222
530322414434
63013210414
7521455615
oct164776252
963635281
1030669994
1116348903
12a330a0a
13647ac34
14410517c
152a5c614
hex1d3fcaa

30669994 has 32 divisors (see below), whose sum is σ = 50440320. Its totient is φ = 13941312.

The previous prime is 30669983. The next prime is 30669997. The reversal of 30669994 is 49996603.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (30669997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110584 + ... + 110860.

It is an arithmetic number, because the mean of its divisors is an integer number (1576260).

Almost surely, 230669994 is an apocalyptic number.

30669994 is a deficient number, since it is larger than the sum of its proper divisors (19770326).

30669994 is a wasteful number, since it uses less digits than its factorization.

30669994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414.

The product of its (nonzero) digits is 314928, while the sum is 46.

The square root of 30669994 is about 5538.0496566932. The cubic root of 30669994 is about 313.0193824823.

The spelling of 30669994 in words is "thirty million, six hundred sixty-nine thousand, nine hundred ninety-four".

Divisors: 1 2 23 29 46 58 83 166 277 554 667 1334 1909 2407 3818 4814 6371 8033 12742 16066 22991 45982 55361 110722 184759 369518 528793 666739 1057586 1333478 15334997 30669994