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27030831 = 337243521
BaseRepresentation
bin110011100011…
…1010100101111
31212212022022220
41213013110233
523404441311
62403210423
7445521042
oct147072457
955768286
1027030831
1114292733
129076a13
1357a5699
143838c59
15258e206
hex19c752f

27030831 has 8 divisors (see below), whose sum is σ = 37015344. Its totient is φ = 17533440.

The previous prime is 27030827. The next prime is 27030851. The reversal of 27030831 is 13803072.

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

It is not a de Polignac number, because 27030831 - 22 = 27030827 is a prime.

It is a super-2 number, since 2×270308312 = 1461331649101122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27030811) 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, 121650 + ... + 121871.

It is an arithmetic number, because the mean of its divisors is an integer number (4626918).

Almost surely, 227030831 is an apocalyptic number.

27030831 is a deficient number, since it is larger than the sum of its proper divisors (9984513).

27030831 is a wasteful number, since it uses less digits than its factorization.

27030831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243561.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 27030831 is about 5199.1182906335. The cubic root of 27030831 is about 300.1141454528.

The spelling of 27030831 in words is "twenty-seven million, thirty thousand, eight hundred thirty-one".

Divisors: 1 3 37 111 243521 730563 9010277 27030831