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30774852 = 22322293733
BaseRepresentation
bin111010101100…
…1011001000100
32010220112011100
41311121121010
530334243402
63015340100
7522403413
oct165313104
963815140
1030774852
111640a669
12a381630
1364b6894
14413147a
152a7d71c
hex1d59644

30774852 has 36 divisors (see below), whose sum is σ = 78152620. Its totient is φ = 10210752.

The previous prime is 30774841. The next prime is 30774853. The reversal of 30774852 is 25847703.

It can be written as a sum of positive squares in 2 ways, for example, as 23677956 + 7096896 = 4866^2 + 2664^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30774853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6378 + ... + 10110.

Almost surely, 230774852 is an apocalyptic number.

It is an amenable number.

30774852 is an abundant number, since it is smaller than the sum of its proper divisors (47377768).

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

30774852 is a wasteful number, since it uses less digits than its factorization.

30774852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 30774852 is about 5547.5086300068. The cubic root of 30774852 is about 313.3757052501.

It can be divided in two parts, 30774 and 852, that added together give a triangular number (31626 = T251).

The spelling of 30774852 in words is "thirty million, seven hundred seventy-four thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 229 458 687 916 1374 2061 2748 3733 4122 7466 8244 11199 14932 22398 33597 44796 67194 134388 854857 1709714 2564571 3419428 5129142 7693713 10258284 15387426 30774852