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30939696 = 2432375807
BaseRepresentation
bin111011000000…
…1101000110000
32011012220021200
41312001220300
530410032241
63023051200
7523661124
oct166015060
964186250
1030939696
11165124a7
12a440b00
136543918
144175584
152ab24b6
hex1d81a30

30939696 has 60 divisors (see below), whose sum is σ = 88943712. Its totient is φ = 10032768.

The previous prime is 30939691. The next prime is 30939709. The reversal of 30939696 is 69693903.

It is not an unprimeable number, because it can be changed into a prime (30939691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2425 + ... + 8231.

Almost surely, 230939696 is an apocalyptic number.

30939696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30939696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44471856).

30939696 is an abundant number, since it is smaller than the sum of its proper divisors (58004016).

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

30939696 is a wasteful number, since it uses less digits than its factorization.

30939696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5858 (or 5849 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 30939696 is about 5562.3462675385. The cubic root of 30939696 is about 313.9342364338.

The spelling of 30939696 in words is "thirty million, nine hundred thirty-nine thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 37 48 72 74 111 144 148 222 296 333 444 592 666 888 1332 1776 2664 5328 5807 11614 17421 23228 34842 46456 52263 69684 92912 104526 139368 209052 214859 278736 418104 429718 644577 836208 859436 1289154 1718872 1933731 2578308 3437744 3867462 5156616 7734924 10313232 15469848 30939696