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2280388 = 221151827
BaseRepresentation
bin1000101100101111000100
311021212002211
420230233010
51040433023
6120513204
725245235
oct10545704
94255084
102280388
111318320
1291b804
1361ac56
1443508c
15300a0d
hex22cbc4

2280388 has 12 divisors (see below), whose sum is σ = 4353552. Its totient is φ = 1036520.

The previous prime is 2280367. The next prime is 2280401. The reversal of 2280388 is 8830822.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25870 + ... + 25957.

It is an arithmetic number, because the mean of its divisors is an integer number (362796).

22280388 is an apocalyptic number.

It is an amenable number.

2280388 is a deficient number, since it is larger than the sum of its proper divisors (2073164).

2280388 is a wasteful number, since it uses less digits than its factorization.

2280388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51842 (or 51840 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 2280388 is about 1510.0953612272. The cubic root of 2280388 is about 131.6243528685.

The spelling of 2280388 in words is "two million, two hundred eighty thousand, three hundred eighty-eight".

Divisors: 1 2 4 11 22 44 51827 103654 207308 570097 1140194 2280388