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2078490 = 23579877
BaseRepresentation
bin111111011011100011010
310220121011010
413323130122
51013002430
6112314350
723444511
oct7733432
93817133
102078490
11119a667
128429b6
1357a09b
143c1678
152b0cb0
hex1fb71a

2078490 has 32 divisors (see below), whose sum is σ = 5057280. Its totient is φ = 546624.

The previous prime is 2078473. The next prime is 2078497. The reversal of 2078490 is 948702.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2078497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1932 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (158040).

22078490 is an apocalyptic number.

2078490 is an abundant number, since it is smaller than the sum of its proper divisors (2978790).

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

2078490 is a wasteful number, since it uses less digits than its factorization.

2078490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2078490 is about 1441.6969168310. The cubic root of 2078490 is about 127.6191888150.

The spelling of 2078490 in words is "two million, seventy-eight thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 877 1185 1754 2370 2631 4385 5262 8770 13155 26310 69283 138566 207849 346415 415698 692830 1039245 2078490