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30913076 = 22193113121
BaseRepresentation
bin111010111101…
…1001000110100
32011011112202202
41311323020310
530403204301
63022324032
7523520405
oct165731064
964145682
1030913076
11164a44a7
12a429618
13653477c
1441699ac
152aa966b
hex1d7b234

30913076 has 24 divisors (see below), whose sum is σ = 58786560. Its totient is φ = 14169600.

The previous prime is 30913073. The next prime is 30913111. The reversal of 30913076 is 67031903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30913073) 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, 4205 + ... + 8916.

It is an arithmetic number, because the mean of its divisors is an integer number (2449440).

Almost surely, 230913076 is an apocalyptic number.

It is an amenable number.

30913076 is a deficient number, since it is larger than the sum of its proper divisors (27873484).

30913076 is a wasteful number, since it uses less digits than its factorization.

30913076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13175 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 30913076 is about 5559.9528774982. The cubic root of 30913076 is about 313.8441760010.

Adding to 30913076 its reverse (67031903), we get a palindrome (97944979).

The spelling of 30913076 in words is "thirty million, nine hundred thirteen thousand, seventy-six".

Divisors: 1 2 4 19 31 38 62 76 124 589 1178 2356 13121 26242 52484 249299 406751 498598 813502 997196 1627004 7728269 15456538 30913076