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30768774 = 2333715217
BaseRepresentation
bin111010101011…
…1111010000110
32010220012211020
41311113322012
530334100044
63015252010
7522346611
oct165277206
963805736
1030768774
1116406043
12a37a006
1364b3b9a
14412d178
152a7ba19
hex1d57e86

30768774 has 16 divisors (see below), whose sum is σ = 61724208. Its totient is φ = 10225152.

The previous prime is 30768769. The next prime is 30768781. The reversal of 30768774 is 47786703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5587 + ... + 9630.

It is an arithmetic number, because the mean of its divisors is an integer number (3857763).

Almost surely, 230768774 is an apocalyptic number.

30768774 is an abundant number, since it is smaller than the sum of its proper divisors (30955434).

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

30768774 is a wasteful number, since it uses less digits than its factorization.

30768774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15559.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 30768774 is about 5546.9607894774. The cubic root of 30768774 is about 313.3550734375.

The spelling of 30768774 in words is "thirty million, seven hundred sixty-eight thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 337 674 1011 2022 15217 30434 45651 91302 5128129 10256258 15384387 30768774