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30744158 = 222516829
BaseRepresentation
bin111010101000…
…1111001011110
32010211222001112
41311101321132
530332303113
63014542022
7522215054
oct165217136
963758045
1030744158
11163995a5
12a367912
1364a5913
1441241d4
152a745a8
hex1d51e5e

30744158 has 8 divisors (see below), whose sum is σ = 46143480. Its totient is φ = 15363000.

The previous prime is 30744149. The next prime is 30744163. The reversal of 30744158 is 85144703.

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

It is a super-2 number, since 2×307441582 = 1890406502257928, 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 in 3 ways as a sum of consecutive naturals, for example, 1088 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (5767935).

Almost surely, 230744158 is an apocalyptic number.

30744158 is a deficient number, since it is larger than the sum of its proper divisors (15399322).

30744158 is a wasteful number, since it uses less digits than its factorization.

30744158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 30744158 is about 5544.7414727830. The cubic root of 30744158 is about 313.2714864603.

The spelling of 30744158 in words is "thirty million, seven hundred forty-four thousand, one hundred fifty-eight".

Divisors: 1 2 2251 4502 6829 13658 15372079 30744158