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2120808 = 23397911
BaseRepresentation
bin1000000101110001101000
310222202012110
420011301220
51020331213
6113242320
724012054
oct10056150
93882173
102120808
111219438
128633a0
13593421
143d2c64
152bd5c3
hex205c68

2120808 has 32 divisors (see below), whose sum is σ = 5362560. Its totient is φ = 698880.

The previous prime is 2120779. The next prime is 2120819. The reversal of 2120808 is 8080212.

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, 1873 + ... + 2783.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

22120808 is an apocalyptic number.

It is an amenable number.

2120808 is an abundant number, since it is smaller than the sum of its proper divisors (3241752).

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

2120808 is a wasteful number, since it uses less digits than its factorization.

2120808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2120808 is about 1456.2994197623. The cubic root of 2120808 is about 128.4794841759.

The spelling of 2120808 in words is "two million, one hundred twenty thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 24 97 194 291 388 582 776 911 1164 1822 2328 2733 3644 5466 7288 10932 21864 88367 176734 265101 353468 530202 706936 1060404 2120808