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2078980 = 225195471
BaseRepresentation
bin111111011100100000100
310220121211021
413323210010
51013011410
6112320524
723446111
oct7734404
93817737
102078980
11119aa72
12843144
1357a387
143c1908
152b0eda
hex1fb904

2078980 has 24 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 787680.

The previous prime is 2078977. The next prime is 2079013. The reversal of 2078980 is 898702.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2356 + ... + 3115.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

22078980 is an apocalyptic number.

2078980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2078980 is an abundant number, since it is smaller than the sum of its proper divisors (2517500).

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

2078980 is a wasteful number, since it uses less digits than its factorization.

2078980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5497 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2078980 is about 1441.8668454472. The cubic root of 2078980 is about 127.6292166861.

The spelling of 2078980 in words is "two million, seventy-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5471 10942 21884 27355 54710 103949 109420 207898 415796 519745 1039490 2078980