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30914518 = 2121312743
BaseRepresentation
bin111010111101…
…1011111010110
32011011121202011
41311323133112
530403231033
63022334434
7523524535
oct165733726
964147664
1030914518
11164a5598
12a42a41a
13653531b
14416a31c
152aa9ccd
hex1d7b7d6

30914518 has 8 divisors (see below), whose sum is σ = 46413648. Its totient is φ = 15443304.

The previous prime is 30914503. The next prime is 30914519. The reversal of 30914518 is 81541903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30914518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30914519) 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, 3946 + ... + 8797.

It is an arithmetic number, because the mean of its divisors is an integer number (5801706).

Almost surely, 230914518 is an apocalyptic number.

30914518 is a deficient number, since it is larger than the sum of its proper divisors (15499130).

30914518 is a wasteful number, since it uses less digits than its factorization.

30914518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13958.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 30914518 is about 5560.0825533440. The cubic root of 30914518 is about 313.8490558805.

The spelling of 30914518 in words is "thirty million, nine hundred fourteen thousand, five hundred eighteen".

Divisors: 1 2 1213 2426 12743 25486 15457259 30914518