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274426481 = 71913715061
BaseRepresentation
bin10000010110110…
…110101001110001
3201010101022100202
4100112312221301
51030223121411
643121524545
76541405130
oct2026665161
9633338322
10274426481
111309a774a
1277aa3755
1344b15844
1428637917
151915b83b
hex105b6a71

274426481 has 16 divisors (see below), whose sum is σ = 332568960. Its totient is φ = 221201280.

The previous prime is 274426457. The next prime is 274426499. The reversal of 274426481 is 184624472.

It is a cyclic number.

It is not a de Polignac number, because 274426481 - 218 = 274164337 is a prime.

It is a super-2 number, since 2×2744264812 = 150619786948086722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (274426381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10691 + ... + 25751.

It is an arithmetic number, because the mean of its divisors is an integer number (20785560).

Almost surely, 2274426481 is an apocalyptic number.

It is an amenable number.

274426481 is a deficient number, since it is larger than the sum of its proper divisors (58142479).

274426481 is a wasteful number, since it uses less digits than its factorization.

274426481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15224.

The product of its digits is 86016, while the sum is 38.

The square root of 274426481 is about 16565.8226780320. The cubic root of 274426481 is about 649.8433397602.

The spelling of 274426481 in words is "two hundred seventy-four million, four hundred twenty-six thousand, four hundred eighty-one".

Divisors: 1 7 19 133 137 959 2603 15061 18221 105427 286159 2003113 2063357 14443499 39203783 274426481