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30404134 = 215202067
BaseRepresentation
bin111001111111…
…0111000100110
32010012200122001
41303332320212
530240413014
63003355514
7516300535
oct163767046
963180561
1030404134
1116187092
12a222b9a
1363b6c17
14407631c
152a08974
hex1cfee26

30404134 has 4 divisors (see below), whose sum is σ = 45606204. Its totient is φ = 15202066.

The previous prime is 30404111. The next prime is 30404167. The reversal of 30404134 is 43140403.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×304041342 = 1848822728579912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7601032 + ... + 7601035.

It is an arithmetic number, because the mean of its divisors is an integer number (11401551).

Almost surely, 230404134 is an apocalyptic number.

30404134 is a deficient number, since it is larger than the sum of its proper divisors (15202070).

30404134 is a wasteful number, since it uses less digits than its factorization.

30404134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15202069.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30404134 is about 5513.9943779442. The cubic root of 30404134 is about 312.1122965810.

Adding to 30404134 its reverse (43140403), we get a palindrome (73544537).

The spelling of 30404134 in words is "thirty million, four hundred four thousand, one hundred thirty-four".

Divisors: 1 2 15202067 30404134