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16180050020 = 2251942579079
BaseRepresentation
bin11110001000110011…
…11111100001100100
31112202121121200222212
433010121333201210
5231114043100040
611233310342552
71111646104331
oct170431774144
945677550885
1016180050020
116953242072
1231767baa58
1316ab176ac4
14ad6c3d988
1564a70dd65
hex3c467f864

16180050020 has 24 divisors (see below), whose sum is σ = 35766427200. Its totient is φ = 6131387232.

The previous prime is 16180049989. The next prime is 16180050049. The reversal of 16180050020 is 2005008161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21289160 + ... + 21289919.

It is an arithmetic number, because the mean of its divisors is an integer number (1490267800).

Almost surely, 216180050020 is an apocalyptic number.

16180050020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16180050020 is an abundant number, since it is smaller than the sum of its proper divisors (19586377180).

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

16180050020 is a wasteful number, since it uses less digits than its factorization.

16180050020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42579107 (or 42579105 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 16180050020 its reverse (2005008161), we get a palindrome (18185058181).

The spelling of 16180050020 in words is "sixteen billion, one hundred eighty million, fifty thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 42579079 85158158 170316316 212895395 425790790 809002501 851581580 1618005002 3236010004 4045012505 8090025010 16180050020