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20310300120 = 23351121398781
BaseRepresentation
bin10010111010100101…
…101001010111011000
31221102110102010222210
4102322211221113120
5313043414100440
613155212115120
71316210462655
oct227245512730
957373363883
1020310300120
1186826a9100
123b29a65aa0
131bb8a70a86
14da95bac2c
157dd111a80
hex4ba9695d8

20310300120 has 96 divisors (see below), whose sum is σ = 66973682160. Its totient is φ = 4923705600.

The previous prime is 20310300119. The next prime is 20310300137. The reversal of 20310300120 is 2100301302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20310300096 and 20310300105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 684871 + ... + 713910.

Almost surely, 220310300120 is an apocalyptic number.

20310300120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310300120 is an abundant number, since it is smaller than the sum of its proper divisors (46663382040).

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

20310300120 is a wasteful number, since it uses less digits than its factorization.

20310300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398817 (or 1398802 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20310300120 its reverse (2100301302), we get a palindrome (22410601422).

The spelling of 20310300120 in words is "twenty billion, three hundred ten million, three hundred thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 121 132 165 220 242 264 330 363 440 484 605 660 726 968 1210 1320 1452 1815 2420 2904 3630 4840 7260 14520 1398781 2797562 4196343 5595124 6993905 8392686 11190248 13987810 15386591 16785372 20981715 27975620 30773182 33570744 41963430 46159773 55951240 61546364 76932955 83926860 92319546 123092728 153865910 167853720 169252501 184639092 230798865 307731820 338505002 369278184 461597730 507757503 615463640 677010004 846262505 923195460 1015515006 1354020008 1692525010 1846390920 2031030012 2538787515 3385050020 4062060024 5077575030 6770100040 10155150060 20310300120