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30108534 = 238835683
BaseRepresentation
bin111001011011…
…0101101110110
32002122200010220
41302312231312
530201433114
62553155210
7513626661
oct162665566
962580126
1030108534
1115aa4a95
12a0bbb06
136312501
143dda6d8
15299b0a9
hex1cb6b76

30108534 has 16 divisors (see below), whose sum is σ = 60295872. Its totient is φ = 10023048.

The previous prime is 30108497. The next prime is 30108539. The reversal of 30108534 is 43580103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30108539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2457 + ... + 8139.

It is an arithmetic number, because the mean of its divisors is an integer number (3768492).

Almost surely, 230108534 is an apocalyptic number.

30108534 is an abundant number, since it is smaller than the sum of its proper divisors (30187338).

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

30108534 is a wasteful number, since it uses less digits than its factorization.

30108534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30108534 is about 5487.1243835000. The cubic root of 30108534 is about 311.0975111496.

Adding to 30108534 its reverse (43580103), we get a palindrome (73688637).

The spelling of 30108534 in words is "thirty million, one hundred eight thousand, five hundred thirty-four".

Divisors: 1 2 3 6 883 1766 2649 5298 5683 11366 17049 34098 5018089 10036178 15054267 30108534