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881668320 = 253513229617
BaseRepresentation
bin110100100011010…
…011000011100000
32021110000101120020
4310203103003200
53301201341240
6223253113440
730564025401
oct6443230340
92243011506
10881668320
11412751505
12207328880
13110878740
14851479a8
155260a0d0
hex348d30e0

881668320 has 192 divisors, whose sum is σ = 3008819520. Its totient is φ = 215728128.

The previous prime is 881668309. The next prime is 881668327. The reversal of 881668320 is 23866188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881668327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1428652 + ... + 1429268.

It is an arithmetic number, because the mean of its divisors is an integer number (15670935).

Almost surely, 2881668320 is an apocalyptic number.

881668320 is a gapful number since it is divisible by the number (80) 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 881668320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1504409760).

881668320 is an abundant number, since it is smaller than the sum of its proper divisors (2127151200).

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

881668320 is a wasteful number, since it uses less digits than its factorization.

881668320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 881668320 is about 29692.9001614864. The cubic root of 881668320 is about 958.8891665190.

The spelling of 881668320 in words is "eight hundred eighty-one million, six hundred sixty-eight thousand, three hundred twenty".