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30920316 = 2237368099
BaseRepresentation
bin111010111110…
…0111001111100
32011011220200220
41311330321330
530403422231
63022421340
7523550460
oct165747174
964156626
1030920316
11164a9989
12a431850
136537b5b
14416c4a0
152aab896
hex1d7ce7c

30920316 has 24 divisors (see below), whose sum is σ = 82454400. Its totient is φ = 8834352.

The previous prime is 30920249. The next prime is 30920321. The reversal of 30920316 is 61302903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183966 + ... + 184133.

It is an arithmetic number, because the mean of its divisors is an integer number (3435600).

Almost surely, 230920316 is an apocalyptic number.

It is an amenable number.

30920316 is an abundant number, since it is smaller than the sum of its proper divisors (51534084).

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

30920316 is a wasteful number, since it uses less digits than its factorization.

30920316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368113 (or 368111 counting only the distinct ones).

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

The square root of 30920316 is about 5560.6039240356. The cubic root of 30920316 is about 313.8686753904.

The spelling of 30920316 in words is "thirty million, nine hundred twenty thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 368099 736198 1104297 1472396 2208594 2576693 4417188 5153386 7730079 10306772 15460158 30920316