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31102030101 = 322346490329
BaseRepresentation
bin11100111101110100…
…110101000100010101
32222021112221211110210
4130331310311010111
51002144104430401
622142120240033
72150510615412
oct347564650425
988245854423
1031102030101
111221031560a
126040010019
132c187a6b0c
141710955109
15c207614d6
hex73dd35115

31102030101 has 8 divisors (see below), whose sum is σ = 41655335680. Its totient is φ = 20641705632.

The previous prime is 31102030097. The next prime is 31102030109. The reversal of 31102030101 is 10103020113.

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

It is not a de Polignac number, because 31102030101 - 22 = 31102030097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102030109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23244496 + ... + 23245833.

It is an arithmetic number, because the mean of its divisors is an integer number (5206916960).

Almost surely, 231102030101 is an apocalyptic number.

It is an amenable number.

31102030101 is a deficient number, since it is larger than the sum of its proper divisors (10553305579).

31102030101 is a wasteful number, since it uses less digits than its factorization.

31102030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46490555.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31102030101 its reverse (10103020113), we get a palindrome (41205050214).

The spelling of 31102030101 in words is "thirty-one billion, one hundred two million, thirty thousand, one hundred one".

Divisors: 1 3 223 669 46490329 139470987 10367343367 31102030101