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30959268 = 2232579939
BaseRepresentation
bin111011000011…
…0011010100100
32011020220010120
41312012122210
530411144033
63023321540
7524102154
oct166063244
964226116
1030959268
111652617a
12a4502b0
13654c7c2
14417c764
152ab81b3
hex1d866a4

30959268 has 12 divisors (see below), whose sum is σ = 72238320. Its totient is φ = 10319752.

The previous prime is 30959267. The next prime is 30959281. The reversal of 30959268 is 86295903.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (30959267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289958 + ... + 1289981.

It is an arithmetic number, because the mean of its divisors is an integer number (6019860).

Almost surely, 230959268 is an apocalyptic number.

It is an amenable number.

30959268 is an abundant number, since it is smaller than the sum of its proper divisors (41279052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30959268 is a wasteful number, since it uses less digits than its factorization.

30959268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579946 (or 2579944 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 30959268 is about 5564.1053189170. The cubic root of 30959268 is about 314.0004192186. Note that the first 3 decimals are identical.

The spelling of 30959268 in words is "thirty million, nine hundred fifty-nine thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 2579939 5159878 7739817 10319756 15479634 30959268