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274068180 = 223251522601
BaseRepresentation
bin10000010101011…
…111001011010100
3201002201002212100
4100111133023110
51030130140210
643110122100
76535353411
oct2025371324
9632632770
10274068180
11130782531
1277950330
1344a1b729
1428583108
15190da5c0
hex1055f2d4

274068180 has 36 divisors (see below), whose sum is σ = 831340692. Its totient is φ = 73084800.

The previous prime is 274068167. The next prime is 274068187. The reversal of 274068180 is 81860472.

It can be written as a sum of positive squares in 2 ways, for example, as 51581124 + 222487056 = 7182^2 + 14916^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2740681802 = 150226734577024800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274068187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 761121 + ... + 761480.

It is an arithmetic number, because the mean of its divisors is an integer number (23092797).

Almost surely, 2274068180 is an apocalyptic number.

274068180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274068180 is an abundant number, since it is smaller than the sum of its proper divisors (557272512).

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

274068180 is a wasteful number, since it uses less digits than its factorization.

274068180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522616 (or 1522611 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 274068180 is about 16555.0046813645. The cubic root of 274068180 is about 649.5603970382.

The spelling of 274068180 in words is "two hundred seventy-four million, sixty-eight thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1522601 3045202 4567803 6090404 7613005 9135606 13703409 15226010 18271212 22839015 27406818 30452020 45678030 54813636 68517045 91356060 137034090 274068180