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30913413 = 375113721
BaseRepresentation
bin111010111101…
…1001110000101
32011011120020020
41311323032011
530403212123
63022325353
7523521366
oct165731605
964146206
1030913413
11164a4783
12a429859
13653497b
144169b6d
152aa97e3
hex1d7b385

30913413 has 8 divisors (see below), whose sum is σ = 41275776. Its totient is φ = 20580000.

The previous prime is 30913343. The next prime is 30913427. The reversal of 30913413 is 31431903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30913413 - 29 = 30912901 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30913453) 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, 4608 + ... + 9113.

It is an arithmetic number, because the mean of its divisors is an integer number (5159472).

Almost surely, 230913413 is an apocalyptic number.

It is an amenable number.

30913413 is a deficient number, since it is larger than the sum of its proper divisors (10362363).

30913413 is a wasteful number, since it uses less digits than its factorization.

30913413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 30913413 is about 5559.9831834278. The cubic root of 30913413 is about 313.8453164580.

The spelling of 30913413 in words is "thirty million, nine hundred thirteen thousand, four hundred thirteen".

Divisors: 1 3 751 2253 13721 41163 10304471 30913413