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30880926 = 23563541
BaseRepresentation
bin111010111001…
…1010010011110
32011002220200000
41311303102132
530401142201
63021515130
7523324566
oct165632236
964086600
1030880926
111648232a
12a412aa6
136522c4b
14415bda6
152a9ed86
hex1d7349e

30880926 has 24 divisors (see below), whose sum is σ = 69387864. Its totient is φ = 10293480.

The previous prime is 30880921. The next prime is 30880933. The reversal of 30880926 is 62908803.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30880921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31285 + ... + 32256.

It is an arithmetic number, because the mean of its divisors is an integer number (2891161).

Almost surely, 230880926 is an apocalyptic number.

30880926 is an abundant number, since it is smaller than the sum of its proper divisors (38506938).

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

30880926 is an equidigital number, since it uses as much as digits as its factorization.

30880926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63558 (or 63546 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 30880926 is about 5557.0609138285. The cubic root of 30880926 is about 313.7353375898.

The spelling of 30880926 in words is "thirty million, eight hundred eighty thousand, nine hundred twenty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 63541 127082 190623 381246 571869 1143738 1715607 3431214 5146821 10293642 15440463 30880926