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30908052 = 22327122651
BaseRepresentation
bin111010111100…
…1111010010100
32011011021212200
41311321322110
530403024202
63022244500
7523466640
oct165717224
964137780
1030908052
11164a074a
12a426730
1365323b6
144167c20
152aa7e1c
hex1d79e94

30908052 has 36 divisors (see below), whose sum is σ = 89290656. Its totient is φ = 8830800.

The previous prime is 30908051. The next prime is 30908071. The reversal of 30908052 is 25080903.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30908051) 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, 61074 + ... + 61577.

It is an arithmetic number, because the mean of its divisors is an integer number (2480296).

Almost surely, 230908052 is an apocalyptic number.

It is an amenable number.

30908052 is an abundant number, since it is smaller than the sum of its proper divisors (58382604).

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

30908052 is a wasteful number, since it uses less digits than its factorization.

30908052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122668 (or 122663 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 30908052 is about 5559.5010567496. The cubic root of 30908052 is about 313.8271730713.

Adding to 30908052 its reverse (25080903), we get a palindrome (55988955).

The spelling of 30908052 in words is "thirty million, nine hundred eight thousand, fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 122651 245302 367953 490604 735906 858557 1103859 1471812 1717114 2207718 2575671 3434228 4415436 5151342 7727013 10302684 15454026 30908052