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102230101020 = 22351703835017
BaseRepresentation
bin101111100110101100…
…0111000110000011100
3100202212120222012201210
41133031120320300130
53133331401213040
6114544105504420
710246233343515
oct1371530706034
9322776865653
10102230101020
113a3a0254aa3
12179907a2110
139842850048
144d3b2d5a0c
1529d4e00480
hex17cd638c1c

102230101020 has 24 divisors (see below), whose sum is σ = 286244283024. Its totient is φ = 27261360256.

The previous prime is 102230100991. The next prime is 102230101093. The reversal of 102230101020 is 20101032201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102230100987 and 102230101005.

It is a congruent number.

It is an unprimeable number.

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, 851917449 + ... + 851917568.

It is an arithmetic number, because the mean of its divisors is an integer number (11926845126).

Almost surely, 2102230101020 is an apocalyptic number.

102230101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102230101020 is an abundant number, since it is smaller than the sum of its proper divisors (184014182004).

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

102230101020 is a wasteful number, since it uses less digits than its factorization.

102230101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703835029 (or 1703835027 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102230101020 its reverse (20101032201), we get a palindrome (122331133221).

The spelling of 102230101020 in words is "one hundred two billion, two hundred thirty million, one hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1703835017 3407670034 5111505051 6815340068 8519175085 10223010102 17038350170 20446020204 25557525255 34076700340 51115050510 102230101020