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20123012210300 = 2252201230122103
BaseRepresentation
bin1001001001101010000001…
…11111101001111001111100
32122020202000022122020212122
410210311000333221321330
510114143412111212200
6110444214552422112
74144561000403336
oct444650077517174
978222008566778
1020123012210300
11645913787235a
12230bb840a7938
13b2c79056925c
144d7d5d668456
1524d6a44e3385
hex124d40fe9e7c

20123012210300 has 18 divisors (see below), whose sum is σ = 43666936496568. Its totient is φ = 8049204884080.

The previous prime is 20123012210281. The next prime is 20123012210339. The reversal of 20123012210300 is 301221032102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100615060952 + ... + 100615061151.

It is an arithmetic number, because the mean of its divisors is an integer number (2425940916476).

Almost surely, 220123012210300 is an apocalyptic number.

20123012210300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123012210300 is an abundant number, since it is smaller than the sum of its proper divisors (23543924286268).

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

20123012210300 is a wasteful number, since it uses less digits than its factorization.

20123012210300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201230122117 (or 201230122110 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20123012210300 its reverse (301221032102), we get a palindrome (20424233242402).

The spelling of 20123012210300 in words is "twenty trillion, one hundred twenty-three billion, twelve million, two hundred ten thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 201230122103 402460244206 804920488412 1006150610515 2012301221030 4024602442060 5030753052575 10061506105150 20123012210300