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30369886 = 2137271409
BaseRepresentation
bin111001111011…
…0100001011110
32010010221122121
41303312201132
530233314021
63002533154
7516065641
oct163664136
963127577
1030369886
1116163388
12a2071ba
1363a4461
144067a58
1529ed741
hex1cf685e

30369886 has 16 divisors (see below), whose sum is σ = 46169280. Its totient is φ = 14981760.

The previous prime is 30369883. The next prime is 30369929. The reversal of 30369886 is 68896303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30369883) 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, 74050 + ... + 74458.

It is an arithmetic number, because the mean of its divisors is an integer number (2885580).

Almost surely, 230369886 is an apocalyptic number.

30369886 is a deficient number, since it is larger than the sum of its proper divisors (15799394).

30369886 is a wasteful number, since it uses less digits than its factorization.

30369886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 30369886 is about 5510.8879502309. The cubic root of 30369886 is about 311.9950621068.

The spelling of 30369886 in words is "thirty million, three hundred sixty-nine thousand, eight hundred eighty-six".

Divisors: 1 2 137 271 274 409 542 818 37127 56033 74254 110839 112066 221678 15184943 30369886