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270747431 = 2377113903
BaseRepresentation
bin10000001000110…
…100011100100111
3200212110101122122
4100020310130213
51023302404211
642511020155
76465213053
oct2010643447
9625411578
10270747431
11129914609
127680a65b
13441280a6
1427d5ac63
1518b816db
hex10234727

270747431 has 4 divisors (see below), whose sum is σ = 270863712. Its totient is φ = 270631152.

The previous prime is 270747427. The next prime is 270747487. The reversal of 270747431 is 134747072.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 270747431 - 22 = 270747427 is a prime.

It is a super-2 number, since 2×2707474312 = 146608342786199522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 270747391 and 270747400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270747331) 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, 54575 + ... + 59328.

It is an arithmetic number, because the mean of its divisors is an integer number (67715928).

Almost surely, 2270747431 is an apocalyptic number.

270747431 is a deficient number, since it is larger than the sum of its proper divisors (116281).

270747431 is a wasteful number, since it uses less digits than its factorization.

270747431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116280.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 270747431 is about 16454.4046078854. The cubic root of 270747431 is about 646.9262616957.

The spelling of 270747431 in words is "two hundred seventy million, seven hundred forty-seven thousand, four hundred thirty-one".

Divisors: 1 2377 113903 270747431