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30133974 = 2313386333
BaseRepresentation
bin111001011110…
…0111011010110
32002200222001010
41302330323112
530203241344
62553513050
7514064103
oct162747326
962628033
1030133974
1116012112
12a112786
136320c70
144005aaa
1529a38b9
hex1cbced6

30133974 has 16 divisors (see below), whose sum is σ = 64904112. Its totient is φ = 9271968.

The previous prime is 30133969. The next prime is 30133993. The reversal of 30133974 is 47933103.

It is a congruent number.

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, 193089 + ... + 193244.

It is an arithmetic number, because the mean of its divisors is an integer number (4056507).

Almost surely, 230133974 is an apocalyptic number.

30133974 is an abundant number, since it is smaller than the sum of its proper divisors (34770138).

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

30133974 is a wasteful number, since it uses less digits than its factorization.

30133974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386351.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 30133974 is about 5489.4420481502. The cubic root of 30133974 is about 311.1851063885.

The spelling of 30133974 in words is "thirty million, one hundred thirty-three thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 13 26 39 78 386333 772666 1158999 2317998 5022329 10044658 15066987 30133974