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102222210020 = 2257730158643
BaseRepresentation
bin101111100110011101…
…0110010001111100100
3100202212001010022022112
41133030322302033210
53133322341210040
6114543224420152
710246106306630
oct1371472621744
9322761108275
10102222210020
113a396855407
121798a017658
139841019408
144d3a23ddc0
1529d4392365
hex17cceb23e4

102222210020 has 24 divisors (see below), whose sum is σ = 245333304384. Its totient is φ = 35047614816.

The previous prime is 102222210007. The next prime is 102222210053. The reversal of 102222210020 is 20012222201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 102222209977 and 102222210004.

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, 365079182 + ... + 365079461.

It is an arithmetic number, because the mean of its divisors is an integer number (10222221016).

Almost surely, 2102222210020 is an apocalyptic number.

102222210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102222210020 is an abundant number, since it is smaller than the sum of its proper divisors (143111094364).

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

102222210020 is a wasteful number, since it uses less digits than its factorization.

102222210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730158659 (or 730158657 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102222210020 its reverse (20012222201), we get a palindrome (122234432221).

The spelling of 102222210020 in words is "one hundred two billion, two hundred twenty-two million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 730158643 1460317286 2920634572 3650793215 5111110501 7301586430 10222221002 14603172860 20444442004 25555552505 51111105010 102222210020