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30639096 = 23321922397
BaseRepresentation
bin111010011100…
…0001111111000
32010122121221100
41310320033320
530320422341
63012411400
7521266545
oct164701770
963577840
1030639096
1116327674
12a316b60
136469b57
1440d7bcc
152a533b6
hex1d383f8

30639096 has 48 divisors (see below), whose sum is σ = 87352200. Its totient is φ = 9675072.

The previous prime is 30639073. The next prime is 30639097. The reversal of 30639096 is 69093603.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 30639096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30639097) 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, 9831 + ... + 12566.

Almost surely, 230639096 is an apocalyptic number.

30639096 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30639096 is an abundant number, since it is smaller than the sum of its proper divisors (56713104).

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

30639096 is a wasteful number, since it uses less digits than its factorization.

30639096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22428 (or 22421 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 30639096 is about 5535.2593435177. The cubic root of 30639096 is about 312.9142316895.

The spelling of 30639096 in words is "thirty million, six hundred thirty-nine thousand, ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 228 342 456 684 1368 22397 44794 67191 89588 134382 179176 201573 268764 403146 425543 537528 806292 851086 1276629 1612584 1702172 2553258 3404344 3829887 5106516 7659774 10213032 15319548 30639096