Search a number
-
+
20120722010 = 2518111116421
BaseRepresentation
bin10010101111010010…
…011101101001011010
31220221020200120201022
4102233102131221122
5312201401101020
613124320522442
71311416213054
oct225722355132
956836616638
1020120722010
118595694284
123a96480422
131b886c538c
14d8c34c8d4
157cb665625
hex4af49da5a

20120722010 has 16 divisors (see below), whose sum is σ = 36417398472. Its totient is φ = 8003822400.

The previous prime is 20120722009. The next prime is 20120722051. The reversal of 20120722010 is 1022702102.

It can be written as a sum of positive squares in 4 ways, for example, as 11546147209 + 8574574801 = 107453^2 + 92599^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20120722010.

It is an unprimeable number.

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, 5556401 + ... + 5560020.

Almost surely, 220120722010 is an apocalyptic number.

20120722010 is a deficient number, since it is larger than the sum of its proper divisors (16296676462).

20120722010 is a wasteful number, since it uses less digits than its factorization.

20120722010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11116609.

The product of its (nonzero) digits is 112, while the sum is 17.

The spelling of 20120722010 in words is "twenty billion, one hundred twenty million, seven hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 181 362 905 1810 11116421 22232842 55582105 111164210 2012072201 4024144402 10060361005 20120722010