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30807412 = 227701853
BaseRepresentation
bin111010110000…
…1010101110100
32010222011211021
41311201111310
530341314122
63020150524
7522600346
oct165412564
963864737
1030807412
1116432079
12a398444
1364c864c
14413d296
152a881c7
hex1d61574

30807412 has 6 divisors (see below), whose sum is σ = 53912978. Its totient is φ = 15403704.

The previous prime is 30807409. The next prime is 30807431. The reversal of 30807412 is 21470803.

It can be written as a sum of positive squares in only one way, i.e., 29986576 + 820836 = 5476^2 + 906^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3850923 + ... + 3850930.

Almost surely, 230807412 is an apocalyptic number.

It is an amenable number.

30807412 is a deficient number, since it is larger than the sum of its proper divisors (23105566).

30807412 is a wasteful number, since it uses less digits than its factorization.

30807412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701857 (or 7701855 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 30807412 is about 5550.4425048819. The cubic root of 30807412 is about 313.4861841634.

The spelling of 30807412 in words is "thirty million, eight hundred seven thousand, four hundred twelve".

Divisors: 1 2 4 7701853 15403706 30807412