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31103112039 = 333029313897
BaseRepresentation
bin11100111101111000…
…111101001101100111
32222021121222210121120
4130331320331031213
51002144344041124
622142155345023
72150523042636
oct347570751547
988247883546
1031103112039
111221099447a
126040452173
132c18a9540c
141710b5751d
15c208c6d79
hex73de3d367

31103112039 has 8 divisors (see below), whose sum is σ = 41472203760. Its totient is φ = 20734714176.

The previous prime is 31103112011. The next prime is 31103112067. The reversal of 31103112039 is 93021130113.

It is an interprime number because it is at equal distance from previous prime (31103112011) and next prime (31103112067).

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

It is not a de Polignac number, because 31103112039 - 219 = 31102587751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103119039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57862 + ... + 256035.

It is an arithmetic number, because the mean of its divisors is an integer number (5184025470).

Almost surely, 231103112039 is an apocalyptic number.

31103112039 is a deficient number, since it is larger than the sum of its proper divisors (10369091721).

31103112039 is a wasteful number, since it uses less digits than its factorization.

31103112039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346929.

The product of its (nonzero) digits is 486, while the sum is 24.

The spelling of 31103112039 in words is "thirty-one billion, one hundred three million, one hundred twelve thousand, thirty-nine".

Divisors: 1 3 33029 99087 313897 941691 10367704013 31103112039