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275042131 = 7133022441
BaseRepresentation
bin10000011001001…
…100111101010011
3201011112120212121
4100121030331103
51030402322011
643143035111
76546551050
oct2031147523
9634476777
10275042131
11131288251
127813ba97
1344c9cb30
1428758027
151922de71
hex1064cf53

275042131 has 8 divisors (see below), whose sum is σ = 338513504. Its totient is φ = 217615680.

The previous prime is 275042111. The next prime is 275042149. The reversal of 275042131 is 131240572.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275042131 - 219 = 274517843 is a prime.

It is a super-2 number, since 2×2750421312 = 151296347650042322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275042096 and 275042105.

It is not an unprimeable number, because it can be changed into a prime (275042111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511130 + ... + 1511311.

It is an arithmetic number, because the mean of its divisors is an integer number (42314188).

Almost surely, 2275042131 is an apocalyptic number.

275042131 is a deficient number, since it is larger than the sum of its proper divisors (63471373).

275042131 is a wasteful number, since it uses less digits than its factorization.

275042131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022461.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 275042131 is about 16584.3942005730. The cubic root of 275042131 is about 650.3289309531.

The spelling of 275042131 in words is "two hundred seventy-five million, forty-two thousand, one hundred thirty-one".

Divisors: 1 7 13 91 3022441 21157087 39291733 275042131