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100313212031 = 2333111384337
BaseRepresentation
bin101110101101100100…
…0100010010001111111
3100120221000000011101022
41131123020202101333
53120420140241111
6114025552134355
710150566143054
oct1353310422177
9316830004338
10100313212031
11395a7213a1a
12175368373bb
1395c86850c6
144bd88b302b
1529219a82db
hex175b22247f

100313212031 has 8 divisors (see below), whose sum is σ = 101067748704. Its totient is φ = 99561445120.

The previous prime is 100313212007. The next prime is 100313212073. The reversal of 100313212031 is 130212313001.

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

It is a cyclic number.

It is not a de Polignac number, because 100313212031 - 210 = 100313211007 is a prime.

It is a super-2 number, since 2×1003132120312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100313262031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619706 + ... + 764631.

It is an arithmetic number, because the mean of its divisors is an integer number (12633468588).

Almost surely, 2100313212031 is an apocalyptic number.

100313212031 is a deficient number, since it is larger than the sum of its proper divisors (754536673).

100313212031 is a wasteful number, since it uses less digits than its factorization.

100313212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384881.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100313212031 its reverse (130212313001), we get a palindrome (230525525032).

The spelling of 100313212031 in words is "one hundred billion, three hundred thirteen million, two hundred twelve thousand, thirty-one".

Divisors: 1 233 311 72463 1384337 322550521 430528807 100313212031