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30808634 = 224736229
BaseRepresentation
bin111010110000…
…1101000111010
32010222020111112
41311201220322
530341334014
63020200322
7522604043
oct165415072
963866445
1030808634
1116432a8a
12a3990a2
1364c907c
14413d8ca
152a8873e
hex1d61a3a

30808634 has 8 divisors (see below), whose sum is σ = 46239060. Its totient is φ = 15395616.

The previous prime is 30808627. The next prime is 30808663. The reversal of 30808634 is 43680803.

It can be written as a sum of positive squares in 2 ways, for example, as 30283009 + 525625 = 5503^2 + 725^2 .

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 30808634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832 + ... + 8060.

Almost surely, 230808634 is an apocalyptic number.

30808634 is a deficient number, since it is larger than the sum of its proper divisors (15430426).

30808634 is a wasteful number, since it uses less digits than its factorization.

30808634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8704.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30808634 is about 5550.5525851036. The cubic root of 30808634 is about 313.4903289999.

The spelling of 30808634 in words is "thirty million, eight hundred eight thousand, six hundred thirty-four".

Divisors: 1 2 2473 4946 6229 12458 15404317 30808634