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103202120020 = 2255160106001
BaseRepresentation
bin110000000011101010…
…0110110000101010100
3100212101022222220010111
41200013110312011110
53142324220320040
6115224351332404
710312305355246
oct1400724660524
9325338886114
10103202120020
113a8499a728a
1218002221104
13996904120c
144dd043c096
152a40405dea
hex1807536154

103202120020 has 12 divisors (see below), whose sum is σ = 216724452084. Its totient is φ = 41280848000.

The previous prime is 103202120009. The next prime is 103202120041. The reversal of 103202120020 is 20021202301.

It can be written as a sum of positive squares in 2 ways, for example, as 38170999876 + 65031120144 = 195374^2 + 255012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2580052981 + ... + 2580053020.

It is an arithmetic number, because the mean of its divisors is an integer number (18060371007).

Almost surely, 2103202120020 is an apocalyptic number.

103202120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103202120020 is an abundant number, since it is smaller than the sum of its proper divisors (113522332064).

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

103202120020 is a wasteful number, since it uses less digits than its factorization.

103202120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160106010 (or 5160106008 counting only the distinct ones).

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

Adding to 103202120020 its reverse (20021202301), we get a palindrome (123223322321).

The spelling of 103202120020 in words is "one hundred three billion, two hundred two million, one hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 5160106001 10320212002 20640424004 25800530005 51601060010 103202120020