Search a number
-
+
30471612 = 22359193223
BaseRepresentation
bin111010000111…
…1010110111100
32010100010012020
41310033112330
530300042422
63005040140
7520001343
oct164172674
963303166
1030471612
1116222856
12a256050
13640b852
144092b5a
152a1d95c
hex1d0f5bc

30471612 has 48 divisors (see below), whose sum is σ = 73006080. Its totient is φ = 9888768.

The previous prime is 30471607. The next prime is 30471613. The reversal of 30471612 is 21617403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30471613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136533 + ... + 136755.

It is an arithmetic number, because the mean of its divisors is an integer number (1520960).

Almost surely, 230471612 is an apocalyptic number.

It is an amenable number.

30471612 is an abundant number, since it is smaller than the sum of its proper divisors (42534468).

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

30471612 is a wasteful number, since it uses less digits than its factorization.

30471612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30471612 is about 5520.1097815170. The cubic root of 30471612 is about 312.3430234533.

The spelling of 30471612 in words is "thirty million, four hundred seventy-one thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 59 118 177 193 223 236 354 386 446 579 669 708 772 892 1158 1338 2316 2676 11387 13157 22774 26314 34161 39471 43039 45548 52628 68322 78942 86078 129117 136644 157884 172156 258234 516468 2539301 5078602 7617903 10157204 15235806 30471612