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102231022020 = 22351703850367
BaseRepresentation
bin101111100110101110…
…0011001100111000100
3100202212122201000002220
41133031130121213010
53133332120201040
6114544141332340
710246244230611
oct1371534314704
9322778630086
10102231022020
113a3a0823a56
1217990b670b0
139842ab330a
144d3b495508
1529d50332d0
hex17cd7199c4

102231022020 has 24 divisors (see below), whose sum is σ = 286246861824. Its totient is φ = 27261605856.

The previous prime is 102231022009. The next prime is 102231022031. The reversal of 102231022020 is 20220132201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102231022009) and next prime (102231022031).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 851925124 + ... + 851925243.

It is an arithmetic number, because the mean of its divisors is an integer number (11926952576).

Almost surely, 2102231022020 is an apocalyptic number.

102231022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102231022020 is an abundant number, since it is smaller than the sum of its proper divisors (184015839804).

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

102231022020 is a wasteful number, since it uses less digits than its factorization.

102231022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703850379 (or 1703850377 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 102231022020 its reverse (20220132201), we get a palindrome (122451154221).

The spelling of 102231022020 in words is "one hundred two billion, two hundred thirty-one million, twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1703850367 3407700734 5111551101 6815401468 8519251835 10223102202 17038503670 20446204404 25557755505 34077007340 51115511010 102231022020