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31064469 = 3101102523
BaseRepresentation
bin111011010000…
…0000110010101
32011110020102220
41312200012111
530423030334
63025452553
7525020652
oct166400625
964406386
1031064469
1116598217
12a4a1159
136588657
1441a8c29
152ad9449
hex1da0195

31064469 has 8 divisors (see below), whose sum is σ = 41829792. Its totient is φ = 20504400.

The previous prime is 31064461. The next prime is 31064477. The reversal of 31064469 is 96446013.

It is an interprime number because it is at equal distance from previous prime (31064461) and next prime (31064477).

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

It is not a de Polignac number, because 31064469 - 23 = 31064461 is a prime.

It is a super-2 number, since 2×310644692 = 1930002468503922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31064461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50959 + ... + 51564.

It is an arithmetic number, because the mean of its divisors is an integer number (5228724).

Almost surely, 231064469 is an apocalyptic number.

It is an amenable number.

31064469 is a deficient number, since it is larger than the sum of its proper divisors (10765323).

31064469 is a wasteful number, since it uses less digits than its factorization.

31064469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102627.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 31064469 is about 5573.5508430443. The cubic root of 31064469 is about 314.3556796910.

The spelling of 31064469 in words is "thirty-one million, sixty-four thousand, four hundred sixty-nine".

Divisors: 1 3 101 303 102523 307569 10354823 31064469