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31012030102 = 287611769891
BaseRepresentation
bin11100111000011101…
…100000011010010110
32222001021121100200111
4130320131200122112
51002003034430402
622125143233234
72145335622634
oct347035403226
988037540614
1031012030102
1112174534249
126015a4881a
132c02c54b91
141702a08354
15c178d49d7
hex738760696

31012030102 has 8 divisors (see below), whose sum is σ = 46523381112. Its totient is φ = 15504236400.

The previous prime is 31012030087. The next prime is 31012030117. The reversal of 31012030102 is 20103021013.

It is an interprime number because it is at equal distance from previous prime (31012030087) and next prime (31012030117).

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

It is a super-2 number, since 2×310120301022 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867424 + ... + 902467.

It is an arithmetic number, because the mean of its divisors is an integer number (5815422639).

Almost surely, 231012030102 is an apocalyptic number.

31012030102 is a deficient number, since it is larger than the sum of its proper divisors (15511351010).

31012030102 is a wasteful number, since it uses less digits than its factorization.

31012030102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778654.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31012030102 its reverse (20103021013), we get a palindrome (51115051115).

The spelling of 31012030102 in words is "thirty-one billion, twelve million, thirty thousand, one hundred two".

Divisors: 1 2 8761 17522 1769891 3539782 15506015051 31012030102