Search a number
-
+
30913302 = 2374317117
BaseRepresentation
bin111010111101…
…1001100010110
32011011120002010
41311323030112
530403211202
63022325050
7523521150
oct165731426
964146063
1030913302
11164a4692
12a429786
1365348c4
144169ad0
152aa976c
hex1d7b316

30913302 has 32 divisors (see below), whose sum is σ = 72306432. Its totient is φ = 8626464.

The previous prime is 30913291. The next prime is 30913307. The reversal of 30913302 is 20331903.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30913307) 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, 6753 + ... + 10364.

It is an arithmetic number, because the mean of its divisors is an integer number (2259576).

Almost surely, 230913302 is an apocalyptic number.

30913302 is an abundant number, since it is smaller than the sum of its proper divisors (41393130).

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

30913302 is a wasteful number, since it uses less digits than its factorization.

30913302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17172.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 30913302 is about 5559.9732013743. The cubic root of 30913302 is about 313.8449408187.

The spelling of 30913302 in words is "thirty million, nine hundred thirteen thousand, three hundred two".

Divisors: 1 2 3 6 7 14 21 42 43 86 129 258 301 602 903 1806 17117 34234 51351 102702 119819 239638 359457 718914 736031 1472062 2208093 4416186 5152217 10304434 15456651 30913302