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942409013 = 72131479449
BaseRepresentation
bin111000001011000…
…000010100110101
32102200022100010112
4320023000110311
53412224042023
6233303032405
732232226100
oct7013002465
92380270115
10942409013
11443a68927
1222373b705
13120324890
148d239737
1557b07478
hex382c0535

942409013 has 12 divisors (see below), whose sum is σ = 1180601100. Its totient is φ = 745641792.

The previous prime is 942409003. The next prime is 942409033. The reversal of 942409013 is 310904249.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 307721764 + 634687249 = 17542^2 + 25193^2 .

It is not a de Polignac number, because 942409013 - 24 = 942408997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942409003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739088 + ... + 740361.

It is an arithmetic number, because the mean of its divisors is an integer number (98383425).

Almost surely, 2942409013 is an apocalyptic number.

It is an amenable number.

942409013 is a deficient number, since it is larger than the sum of its proper divisors (238192087).

942409013 is a wasteful number, since it uses less digits than its factorization.

942409013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479476 (or 1479469 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 942409013 is about 30698.6809651490. The cubic root of 942409013 is about 980.4222160286.

The spelling of 942409013 in words is "nine hundred forty-two million, four hundred nine thousand, thirteen".

Divisors: 1 7 13 49 91 637 1479449 10356143 19232837 72493001 134629859 942409013