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103031103024020 = 22517661458445773
BaseRepresentation
bin10111011011010011001100…
…010010111110101110010100
3111111210200021201102010121102
4113123103030102332232110
5102001030144333232040
61003043500232005232
730462515531554553
oct2733231422765624
9444720251363542
10103031103024020
112a913277707186
12b68014bb30818
134564a3970a172
141b62a3683bd9a
15bda11e8be515
hex5db4cc4beb94

103031103024020 has 48 divisors (see below), whose sum is σ = 229439273405328. Its totient is φ = 38729498818560.

The previous prime is 103031103023993. The next prime is 103031103024041. The reversal of 103031103024020 is 20420301130301.

It can be written as a sum of positive squares in 8 ways, for example, as 525967255696 + 102505135768324 = 725236^2 + 10124482^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 103031103023983 and 103031103024001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228998147 + ... + 229447626.

It is an arithmetic number, because the mean of its divisors is an integer number (4779984862611).

Almost surely, 2103031103024020 is an apocalyptic number.

103031103024020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103031103024020 is an abundant number, since it is smaller than the sum of its proper divisors (126408170381308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103031103024020 is a wasteful number, since it uses less digits than its factorization.

103031103024020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458446460 (or 458446458 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 103031103024020 its reverse (20420301130301), we get a palindrome (123451404154321).

The spelling of 103031103024020 in words is "one hundred three trillion, thirty-one billion, one hundred three million, twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 661 1322 2644 3305 6610 11237 13220 22474 44948 56185 112370 224740 458445773 916891546 1833783092 2292228865 4584457730 7793578141 9168915460 15587156282 31174312564 38967890705 77935781410 155871562820 303032655953 606065311906 1212130623812 1515163279765 3030326559530 5151555151201 6060653119060 10303110302402 20606220604804 25757775756005 51515551512010 103031103024020