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210031100012013 = 3724951288584729
BaseRepresentation
bin101111110000010110101101…
…000110111010010111101101
31000112122202222111000121120120
4233300112231012322113231
5210012122143100341023
62022410542203435153
762145150311504100
oct5760265506722755
91015582874017516
10210031100012013
1160a16764503735
121b681526525ab9
139026b03665777
1439c17b9300737
1519435ce4958e3
hexbf05ad1ba5ed

210031100012013 has 24 divisors (see below), whose sum is σ = 325828320914880. Its totient is φ = 119993529902400.

The previous prime is 210031100011973. The next prime is 210031100012047. The reversal of 210031100012013 is 310210001130012.

It is a happy number.

It is not a de Polignac number, because 210031100012013 - 237 = 209893661058541 is a prime.

It is a super-2 number, since 2×2100311000120132 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210031100011983 and 210031100012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210031100012413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143564568 + ... + 145020161.

It is an arithmetic number, because the mean of its divisors is an integer number (13576180038120).

Almost surely, 2210031100012013 is an apocalyptic number.

It is an amenable number.

210031100012013 is a deficient number, since it is larger than the sum of its proper divisors (115797220902867).

210031100012013 is a wasteful number, since it uses less digits than its factorization.

210031100012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288589697 (or 288589690 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 210031100012013 its reverse (310210001130012), we get a palindrome (520241101142025).

The spelling of 210031100012013 in words is "two hundred ten trillion, thirty-one billion, one hundred million, twelve thousand, thirteen".

Divisors: 1 3 7 21 49 147 4951 14853 34657 103971 242599 727797 288584729 865754187 2020093103 6060279309 14140651721 42421955163 1428782993279 4286348979837 10001480952953 30004442858859 70010366670671 210031100012013