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30690774 = 2322516793
BaseRepresentation
bin111010100010…
…0110111010110
32010202020211100
41311010313112
530324101044
63013450530
7521603322
oct165046726
963666740
1030690774
1116362484
12a340a46
13648752a
14410c982
152a63869
hex1d44dd6

30690774 has 24 divisors (see below), whose sum is σ = 66771432. Its totient is φ = 10188000.

The previous prime is 30690767. The next prime is 30690799. The reversal of 30690774 is 47709603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122 + ... + 7914.

It is an arithmetic number, because the mean of its divisors is an integer number (2782143).

Almost surely, 230690774 is an apocalyptic number.

30690774 is an abundant number, since it is smaller than the sum of its proper divisors (36080658).

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

30690774 is a wasteful number, since it uses less digits than its factorization.

30690774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052 (or 7049 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 30690774 is about 5539.9254507620. The cubic root of 30690774 is about 313.0900604040.

The spelling of 30690774 in words is "thirty million, six hundred ninety thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 9 18 251 502 753 1506 2259 4518 6793 13586 20379 40758 61137 122274 1705043 3410086 5115129 10230258 15345387 30690774