Search a number
-
+
30525902 = 21111291229
BaseRepresentation
bin111010001110…
…0100111001110
32010102212122222
41310130213032
530303312102
63010135342
7520315541
oct164344716
963385588
1030525902
111625a620
12a281552
13642a484
1440a8858
152a2eaa2
hex1d1c9ce

30525902 has 16 divisors (see below), whose sum is σ = 50036400. Its totient is φ = 13851840.

The previous prime is 30525883. The next prime is 30525907. The reversal of 30525902 is 20952503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30525907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24224 + ... + 25452.

It is an arithmetic number, because the mean of its divisors is an integer number (3127275).

Almost surely, 230525902 is an apocalyptic number.

30525902 is a deficient number, since it is larger than the sum of its proper divisors (19510498).

30525902 is a wasteful number, since it uses less digits than its factorization.

30525902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 30525902 is about 5525.0250678164. The cubic root of 30525902 is about 312.5284095772.

The spelling of 30525902 in words is "thirty million, five hundred twenty-five thousand, nine hundred two".

Divisors: 1 2 11 22 1129 1229 2258 2458 12419 13519 24838 27038 1387541 2775082 15262951 30525902