Search a number
-
+
274087820 = 22513704391
BaseRepresentation
bin10000010101100…
…011111110001100
3201002202002210202
4100111203332030
51030131302240
643110353032
76535464566
oct2025437614
9632662722
10274087820
11130796266
127795b778
1344a27656
142858a336
15190e1315
hex10563f8c

274087820 has 12 divisors (see below), whose sum is σ = 575584464. Its totient is φ = 109635120.

The previous prime is 274087819. The next prime is 274087831. The reversal of 274087820 is 28780472.

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, 6852176 + ... + 6852215.

It is an arithmetic number, because the mean of its divisors is an integer number (47965372).

Almost surely, 2274087820 is an apocalyptic number.

274087820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274087820 is an abundant number, since it is smaller than the sum of its proper divisors (301496644).

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

274087820 is a wasteful number, since it uses less digits than its factorization.

274087820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13704400 (or 13704398 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 274087820 is about 16555.5978448379. The cubic root of 274087820 is about 649.5759127169.

The spelling of 274087820 in words is "two hundred seventy-four million, eighty-seven thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 13704391 27408782 54817564 68521955 137043910 274087820