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274068820 = 22513703441
BaseRepresentation
bin10000010101011…
…111010101010100
3201002201010202001
4100111133111110
51030130200240
643110125044
76535355314
oct2025372524
9632633661
10274068820
11130782a63
1277950784
1344a1bacc
1428583444
15190da89a
hex1055f554

274068820 has 12 divisors (see below), whose sum is σ = 575544564. Its totient is φ = 109627520.

The previous prime is 274068811. The next prime is 274068827. The reversal of 274068820 is 28860472.

It can be written as a sum of positive squares in 2 ways, for example, as 41628304 + 232440516 = 6452^2 + 15246^2 .

It is a super-2 number, since 2×2740688202 = 150227436192384800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 274068820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274068827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6851701 + ... + 6851740.

It is an arithmetic number, because the mean of its divisors is an integer number (47962047).

Almost surely, 2274068820 is an apocalyptic number.

274068820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274068820 is an abundant number, since it is smaller than the sum of its proper divisors (301475744).

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

274068820 is a wasteful number, since it uses less digits than its factorization.

274068820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13703450 (or 13703448 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 274068820 is about 16555.0240108554. The cubic root of 274068820 is about 649.5609026525.

The spelling of 274068820 in words is "two hundred seventy-four million, sixty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 13703441 27406882 54813764 68517205 137034410 274068820