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912429381 = 31979202627
BaseRepresentation
bin110110011000101…
…001000101000101
32100120220012210210
4312120221011011
53332040220011
6230312310033
731416343653
oct6630510505
92316805723
10912429381
11429051776
122156a2319
13117058c56
1489273dd3
15551846a6
hex36629145

912429381 has 16 divisors (see below), whose sum is σ = 1296819200. Its totient is φ = 568973808.

The previous prime is 912429379. The next prime is 912429391. The reversal of 912429381 is 183924219.

It is not a de Polignac number, because 912429381 - 21 = 912429379 is a prime.

It is a super-2 number, since 2×9124293812 = 1665054750624086322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912429391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96811 + ... + 105816.

It is an arithmetic number, because the mean of its divisors is an integer number (81051200).

Almost surely, 2912429381 is an apocalyptic number.

It is an amenable number.

912429381 is a deficient number, since it is larger than the sum of its proper divisors (384389819).

912429381 is a wasteful number, since it uses less digits than its factorization.

912429381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202728.

The product of its digits is 31104, while the sum is 39.

The square root of 912429381 is about 30206.4460173652. The cubic root of 912429381 is about 969.9136852377.

The spelling of 912429381 in words is "nine hundred twelve million, four hundred twenty-nine thousand, three hundred eighty-one".

Divisors: 1 3 19 57 79 237 1501 4503 202627 607881 3849913 11549739 16007533 48022599 304143127 912429381