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10123202020 = 2251937926119
BaseRepresentation
bin10010110110110001…
…11100110111100100
3222010111120221112011
421123120330313210
5131213014431040
64352303204004
7505601540341
oct113330746744
928114527464
1010123202020
114325313568
121b662a6604
13c54395989
146c06737c8
153e3ae73ea
hex25b63cde4

10123202020 has 24 divisors (see below), whose sum is σ = 21260635200. Its totient is φ = 4048916832.

The previous prime is 10123201967. The next prime is 10123202021. The reversal of 10123202020 is 2020232101.

It is not an unprimeable number, because it can be changed into a prime (10123202021) by changing a digit.

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, 374521 + ... + 400639.

It is an arithmetic number, because the mean of its divisors is an integer number (885859800).

Almost surely, 210123202020 is an apocalyptic number.

10123202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10123202020 is an abundant number, since it is smaller than the sum of its proper divisors (11137433180).

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

10123202020 is a wasteful number, since it uses less digits than its factorization.

10123202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45507 (or 45505 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10123202020 its reverse (2020232101), we get a palindrome (12143434121).

The spelling of 10123202020 in words is "ten billion, one hundred twenty-three million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 19379 26119 38758 52238 77516 96895 104476 130595 193790 261190 387580 522380 506160101 1012320202 2024640404 2530800505 5061601010 10123202020