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102012122322 = 23211515212739
BaseRepresentation
bin101111100000001100…
…1010111010011010010
3100202022101210202011200
41133000121113103102
53132410100403242
6114510321452030
710240645506225
oct1370031272322
9322271722150
10102012122322
113a299202410
121792b7a1016
13980963c676
144d1a3935bc
1529c0be404c
hex17c06574d2

102012122322 has 24 divisors (see below), whose sum is σ = 241119562320. Its totient is φ = 30912764280.

The previous prime is 102012122297. The next prime is 102012122327. The reversal of 102012122322 is 223221210201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102012122295 and 102012122304.

It is not an unprimeable number, because it can be changed into a prime (102012122327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257606172 + ... + 257606567.

It is an arithmetic number, because the mean of its divisors is an integer number (10046648430).

Almost surely, 2102012122322 is an apocalyptic number.

102012122322 is an abundant number, since it is smaller than the sum of its proper divisors (139107439998).

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

102012122322 is a wasteful number, since it uses less digits than its factorization.

102012122322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515212758 (or 515212755 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102012122322 its reverse (223221210201), we get a palindrome (325233332523).

The spelling of 102012122322 in words is "one hundred two billion, twelve million, one hundred twenty-two thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 515212739 1030425478 1545638217 3091276434 4636914651 5667340129 9273829302 11334680258 17002020387 34004040774 51006061161 102012122322