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274980 = 22354583
BaseRepresentation
bin1000011001000100100
3111222012110
41003020210
532244410
65521020
72223456
oct1031044
9458173
10274980
11178662
12113170
1398214
14722d6
1556720
hex43224

274980 has 24 divisors (see below), whose sum is σ = 770112. Its totient is φ = 73312.

The previous prime is 274973. The next prime is 274993. The reversal of 274980 is 89472.

It is a super-2 number, since 2×2749802 = 151228000800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

It is a plaindrome in base 7.

It is an unprimeable number.

274980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2232 + ... + 2351.

It is an arithmetic number, because the mean of its divisors is an integer number (32088).

2274980 is an apocalyptic number.

274980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274980 is an abundant number, since it is smaller than the sum of its proper divisors (495132).

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

274980 is a wasteful number, since it uses less digits than its factorization.

274980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4595 (or 4593 counting only the distinct ones).

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

The square root of 274980 is about 524.3853544866. The cubic root of 274980 is about 65.0279958299.

The spelling of 274980 in words is "two hundred seventy-four thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4583 9166 13749 18332 22915 27498 45830 54996 68745 91660 137490 274980