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31033044142 = 2100915378119
BaseRepresentation
bin11100111001101101…
…101010110010101110
32222002202010222112021
4130321231222302232
51002023424403032
622131213500354
72146012344232
oct347155526256
988082128467
1031033044142
1112185387421
126020aa16ba
132c07401a19
1417057185c2
15c19686097
hex739b6acae

31033044142 has 8 divisors (see below), whose sum is σ = 46595703600. Its totient is φ = 15501142944.

The previous prime is 31033044139. The next prime is 31033044167. The reversal of 31033044142 is 24144033013.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7687042 + ... + 7691077.

It is an arithmetic number, because the mean of its divisors is an integer number (5824462950).

Almost surely, 231033044142 is an apocalyptic number.

31033044142 is a deficient number, since it is larger than the sum of its proper divisors (15562659458).

31033044142 is a wasteful number, since it uses less digits than its factorization.

31033044142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15379130.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31033044142 its reverse (24144033013), we get a palindrome (55177077155).

The spelling of 31033044142 in words is "thirty-one billion, thirty-three million, forty-four thousand, one hundred forty-two".

Divisors: 1 2 1009 2018 15378119 30756238 15516522071 31033044142