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30814574 = 2717433011
BaseRepresentation
bin111010110001…
…1000101101110
32010222112122112
41311203011232
530342031244
63020244022
7522630260
oct165430556
963875575
1030814574
111643749a
12a3a0612
1364cb99b
144141b30
152a8a39e
hex1d6316e

30814574 has 32 divisors (see below), whose sum is σ = 57252096. Its totient is φ = 12136320.

The previous prime is 30814529. The next prime is 30814607. The reversal of 30814574 is 47541803.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30814574.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8729 + ... + 11739.

It is an arithmetic number, because the mean of its divisors is an integer number (1789128).

Almost surely, 230814574 is an apocalyptic number.

30814574 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

30814574 is a deficient number, since it is larger than the sum of its proper divisors (26437522).

30814574 is a wasteful number, since it uses less digits than its factorization.

30814574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 30814574 is about 5551.0876411745. The cubic root of 30814574 is about 313.5104750071.

The spelling of 30814574 in words is "thirty million, eight hundred fourteen thousand, five hundred seventy-four".

Divisors: 1 2 7 14 17 34 43 86 119 238 301 602 731 1462 3011 5117 6022 10234 21077 42154 51187 102374 129473 258946 358309 716618 906311 1812622 2201041 4402082 15407287 30814574