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5656880 = 245312281
BaseRepresentation
bin10101100101000100110000
3101122101210002
4111211010300
52422010010
6321125132
766040235
oct25450460
911571702
105656880
113214109
121a897a8
131230a88
14a7378c
1576b1a5
hex565130

5656880 has 40 divisors (see below), whose sum is σ = 13582464. Its totient is φ = 2188800.

The previous prime is 5656837. The next prime is 5656921. The reversal of 5656880 is 886565.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340 + ... + 3620.

Almost surely, 25656880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5656880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6791232).

5656880 is an abundant number, since it is smaller than the sum of its proper divisors (7925584).

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

5656880 is a wasteful number, since it uses less digits than its factorization.

5656880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 5656880 is about 2378.4196433767. The cubic root of 5656880 is about 178.1800139910.

The spelling of 5656880 in words is "five million, six hundred fifty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2281 2480 4562 9124 11405 18248 22810 36496 45620 70711 91240 141422 182480 282844 353555 565688 707110 1131376 1414220 2828440 5656880