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123432022020 = 22354347841869
BaseRepresentation
bin111001011110100011…
…1110011000000000100
3102210121012010101122010
41302331013303000010
54010242044201040
6132412012334220
711626521606336
oct1627507630004
9383535111563
10123432022020
114839018205a
121bb09174370
13b841242628
145d8d08b456
153326435e80
hex1cbd1f3004

123432022020 has 48 divisors (see below), whose sum is σ = 353647103040. Its totient is φ = 32149735296.

The previous prime is 123432022001. The next prime is 123432022097. The reversal of 123432022020 is 20220234321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23918355 + ... + 23923514.

It is an arithmetic number, because the mean of its divisors is an integer number (7367647980).

Almost surely, 2123432022020 is an apocalyptic number.

123432022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123432022020 is an abundant number, since it is smaller than the sum of its proper divisors (230215081020).

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

123432022020 is a wasteful number, since it uses less digits than its factorization.

123432022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47841924 (or 47841922 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 123432022020 its reverse (20220234321), we get a palindrome (143652256341).

The spelling of 123432022020 in words is "one hundred twenty-three billion, four hundred thirty-two million, twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 47841869 95683738 143525607 191367476 239209345 287051214 478418690 574102428 717628035 956837380 1435256070 2057200367 2870512140 4114400734 6171601101 8228801468 10286001835 12343202202 20572003670 24686404404 30858005505 41144007340 61716011010 123432022020