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30676320 = 25365263
BaseRepresentation
bin111010100000…
…1010101100000
32010201112000000
41311001111200
530323120240
63013300000
7521513223
oct165012540
963645000
1030676320
1116352634
12a334600
136480a8c
1441075ba
152a5e430
hex1d41560

30676320 has 168 divisors, whose sum is σ = 109072656. Its totient is φ = 8149248.

The previous prime is 30676297. The next prime is 30676339. The reversal of 30676320 is 2367603.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 116509 + ... + 116771.

It is an arithmetic number, because the mean of its divisors is an integer number (649242).

Almost surely, 230676320 is an apocalyptic number.

30676320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30676320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54536328).

30676320 is an abundant number, since it is smaller than the sum of its proper divisors (78396336).

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

30676320 is an equidigital number, since it uses as much as digits as its factorization.

30676320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 30676320 is about 5538.6207669419. The cubic root of 30676320 is about 313.0409021527.

The spelling of 30676320 in words is "thirty million, six hundred seventy-six thousand, three hundred twenty".