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31034842 = 243335837
BaseRepresentation
bin111011001100…
…0110111011010
32011101201210121
41312120313122
530421103332
63025103454
7524535406
oct166306732
964351717
1031034842
1116577a33
12a487b8a
136578017
14419c106
152ad0797
hex1d98dda

31034842 has 8 divisors (see below), whose sum is σ = 46661076. Its totient is φ = 15481152.

The previous prime is 31034831. The next prime is 31034849. The reversal of 31034842 is 24843013.

It can be written as a sum of positive squares in 2 ways, for example, as 27762361 + 3272481 = 5269^2 + 1809^2 .

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

It is a super-2 number, since 2×310348422 = 1926322835929928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31034849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17053 + ... + 18784.

Almost surely, 231034842 is an apocalyptic number.

31034842 is a deficient number, since it is larger than the sum of its proper divisors (15626234).

31034842 is a wasteful number, since it uses less digits than its factorization.

31034842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36272.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 31034842 is about 5570.8923881188. The cubic root of 31034842 is about 314.2557114807.

Adding to 31034842 its reverse (24843013), we get a palindrome (55877855).

The spelling of 31034842 in words is "thirty-one million, thirty-four thousand, eight hundred forty-two".

Divisors: 1 2 433 866 35837 71674 15517421 31034842