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100312022031 = 31310735836709
BaseRepresentation
bin101110101101100001…
…1111111110000001111
3100120220220202201000020
41131123003333300033
53120414334201111
6114025510433223
710150553055504
oct1353303776017
9316826681006
10100312022031
11395a6580951
1217536362813
1395c8359570
144bd86834ab
152921820906
hex175b0ffc0f

100312022031 has 32 divisors (see below), whose sum is σ = 145446174720. Its totient is φ = 61127374464.

The previous prime is 100312022023. The next prime is 100312022059. The reversal of 100312022031 is 130220213001.

It is not a de Polignac number, because 100312022031 - 23 = 100312022023 is a prime.

It is a super-3 number, since 3×1003120220313 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 100312022031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312022011) 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 31 ways as a sum of consecutive naturals, for example, 14948505 + ... + 14955213.

It is an arithmetic number, because the mean of its divisors is an integer number (4545192960).

Almost surely, 2100312022031 is an apocalyptic number.

100312022031 is a deficient number, since it is larger than the sum of its proper divisors (45134152689).

100312022031 is a wasteful number, since it uses less digits than its factorization.

100312022031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10415.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100312022031 its reverse (130220213001), we get a palindrome (230532235032).

The spelling of 100312022031 in words is "one hundred billion, three hundred twelve million, twenty-two thousand, thirty-one".

Divisors: 1 3 13 39 107 321 1391 3583 4173 6709 10749 20127 46579 87217 139737 261651 383381 717863 1150143 2153589 4983953 9332219 14951859 24038347 27996657 72115041 312498511 937495533 2572103129 7716309387 33437340677 100312022031