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30449134 = 219801293
BaseRepresentation
bin111010000100…
…1110111101110
32010021222100201
41310021313232
530243333014
63004344114
7516545662
oct164116756
963258321
1030449134
1116207981
12a24503a
136401551
1440888a2
152a16e74
hex1d09dee

30449134 has 8 divisors (see below), whose sum is σ = 48077640. Its totient is φ = 14423256.

The previous prime is 30449129. The next prime is 30449137. The reversal of 30449134 is 43194403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×304491342 = 1854299522699912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30449137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400609 + ... + 400684.

It is an arithmetic number, because the mean of its divisors is an integer number (6009705).

Almost surely, 230449134 is an apocalyptic number.

30449134 is a deficient number, since it is larger than the sum of its proper divisors (17628506).

30449134 is a wasteful number, since it uses less digits than its factorization.

30449134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801314.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30449134 is about 5518.0733956699. The cubic root of 30449134 is about 312.2662025142.

The spelling of 30449134 in words is "thirty million, four hundred forty-nine thousand, one hundred thirty-four".

Divisors: 1 2 19 38 801293 1602586 15224567 30449134