Search a number
-
+
30624308 = 221113371447
BaseRepresentation
bin111010011010…
…0101000110100
32010121212122122
41310310220310
530314434213
63012215112
7521205461
oct164645064
963555578
1030624308
1116317550
12a30a498
1364631c0
1440d2668
152a4dd08
hex1d34a34

30624308 has 48 divisors (see below), whose sum is σ = 64708224. Its totient is φ = 12493440.

The previous prime is 30624283. The next prime is 30624331. The reversal of 30624308 is 80342603.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20441 + ... + 21887.

It is an arithmetic number, because the mean of its divisors is an integer number (1348088).

Almost surely, 230624308 is an apocalyptic number.

It is an amenable number.

30624308 is an abundant number, since it is smaller than the sum of its proper divisors (34083916).

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

30624308 is a wasteful number, since it uses less digits than its factorization.

30624308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1510 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 30624308 is about 5533.9233821946. The cubic root of 30624308 is about 312.8638807661.

The spelling of 30624308 in words is "thirty million, six hundred twenty-four thousand, three hundred eight".

Divisors: 1 2 4 11 13 22 26 37 44 52 74 143 148 286 407 481 572 814 962 1447 1628 1924 2894 5291 5788 10582 15917 18811 21164 31834 37622 53539 63668 75244 107078 206921 214156 413842 588929 696007 827684 1177858 1392014 2355716 2784028 7656077 15312154 30624308