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31269227 = 117935983
BaseRepresentation
bin111011101001…
…0000101101011
32011211122022112
41313102011223
531001103402
63034112535
7526532633
oct167220553
964748275
1031269227
1116718040
12a57b74b
13662a902
14421d6c3
152b29e52
hex1dd216b

31269227 has 8 divisors (see below), whose sum is σ = 34544640. Its totient is φ = 28065960.

The previous prime is 31269223. The next prime is 31269229. The reversal of 31269227 is 72296213.

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 31269227 - 22 = 31269223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31269193 and 31269202.

It is not an unprimeable number, because it can be changed into a prime (31269223) 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, 17123 + ... + 18860.

It is an arithmetic number, because the mean of its divisors is an integer number (4318080).

Almost surely, 231269227 is an apocalyptic number.

31269227 is a deficient number, since it is larger than the sum of its proper divisors (3275413).

31269227 is a wasteful number, since it uses less digits than its factorization.

31269227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36073.

The product of its digits is 9072, while the sum is 32.

The square root of 31269227 is about 5591.8893944712. The cubic root of 31269227 is about 315.0448479019.

The spelling of 31269227 in words is "thirty-one million, two hundred sixty-nine thousand, two hundred twenty-seven".

Divisors: 1 11 79 869 35983 395813 2842657 31269227