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274697980 = 22513734899
BaseRepresentation
bin10000010111111…
…000111011111100
3201010220002210021
4100113320323330
51030310313410
643131421524
76543615514
oct2027707374
9633802707
10274697980
11131072727
1277bb48a4
1344bac2ab
14286a8844
15191b1eda
hex105f8efc

274697980 has 12 divisors (see below), whose sum is σ = 576865800. Its totient is φ = 109879184.

The previous prime is 274697957. The next prime is 274697981. The reversal of 274697980 is 89796472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274697981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6867430 + ... + 6867469.

It is an arithmetic number, because the mean of its divisors is an integer number (48072150).

Almost surely, 2274697980 is an apocalyptic number.

274697980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274697980 is an abundant number, since it is smaller than the sum of its proper divisors (302167820).

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

274697980 is a wasteful number, since it uses less digits than its factorization.

274697980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13734908 (or 13734906 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 274697980 is about 16574.0152045303. The cubic root of 274697980 is about 650.0575728097.

The spelling of 274697980 in words is "two hundred seventy-four million, six hundred ninety-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 13734899 27469798 54939596 68674495 137348990 274697980