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2913980 = 225367397
BaseRepresentation
bin1011000111011010111100
312111001020012
423013122330
51221221410
6142242352
733524366
oct13073274
95431205
102913980
111710353
12b863b8
137b0464
1455bd36
153c8605
hex2c76bc

2913980 has 24 divisors (see below), whose sum is σ = 6151488. Its totient is φ = 1159488.

The previous prime is 2913979. The next prime is 2913997. The reversal of 2913980 is 893192.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7142 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (256312).

22913980 is an apocalyptic number.

2913980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2913980 is an abundant number, since it is smaller than the sum of its proper divisors (3237508).

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

2913980 is a wasteful number, since it uses less digits than its factorization.

2913980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2913980 is about 1707.0383709806. The cubic root of 2913980 is about 142.8330978579.

The spelling of 2913980 in words is "two million, nine hundred thirteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 367 397 734 794 1468 1588 1835 1985 3670 3970 7340 7940 145699 291398 582796 728495 1456990 2913980