Search a number
-
+
12020301020 = 2257136604561
BaseRepresentation
bin10110011000111011…
…10011110011011100
31011000201022120010002
423030131303303130
5144104144113040
65304432433432
7603605605250
oct131435636334
934021276102
1012020301020
115109168082
1223b56a8878
131197421c70
148205c4260
154a5430a15
hex2cc773cdc

12020301020 has 48 divisors (see below), whose sum is σ = 31067859648. Its totient is φ = 3804226560.

The previous prime is 12020300947. The next prime is 12020301067. The reversal of 12020301020 is 2010302021.

It is a happy number.

It is a super-2 number, since 2×120203010202 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020300992 and 12020301010.

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, 3300461 + ... + 3304100.

It is an arithmetic number, because the mean of its divisors is an integer number (647247076).

Almost surely, 212020301020 is an apocalyptic number.

12020301020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020301020 is an abundant number, since it is smaller than the sum of its proper divisors (19047558628).

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

12020301020 is a wasteful number, since it uses less digits than its factorization.

12020301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6604590 (or 6604588 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12020301020 its reverse (2010302021), we get a palindrome (14030603041).

The spelling of 12020301020 in words is "twelve billion, twenty million, three hundred one thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 6604561 13209122 26418244 33022805 46231927 66045610 85859293 92463854 132091220 171718586 184927708 231159635 343437172 429296465 462319270 601015051 858592930 924638540 1202030102 1717185860 2404060204 3005075255 6010150510 12020301020