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103202121320 = 2359281277993
BaseRepresentation
bin110000000011101010…
…0110110011001101000
3100212101022222221220122
41200013110312121220
53142324220340240
6115224351342412
710312305362114
oct1400724663150
9325338887818
10103202121320
113a8499a8261
1218002221a08
13996904199c
144dd043c744
152a404064b5
hex1807536668

103202121320 has 32 divisors (see below), whose sum is σ = 232230627720. Its totient is φ = 41276252160.

The previous prime is 103202121311. The next prime is 103202121367. The reversal of 103202121320 is 23121202301.

It can be written as a sum of positive squares in 4 ways, for example, as 71360573956 + 31841547364 = 267134^2 + 178442^2 .

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, 232244 + ... + 510236.

Almost surely, 2103202121320 is an apocalyptic number.

103202121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103202121320 is an abundant number, since it is smaller than the sum of its proper divisors (129028506400).

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

103202121320 is a wasteful number, since it uses less digits than its factorization.

103202121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287285 (or 287281 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103202121320 its reverse (23121202301), we get a palindrome (126323323621).

The spelling of 103202121320 in words is "one hundred three billion, two hundred two million, one hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 9281 18562 37124 46405 74248 92810 185620 277993 371240 555986 1111972 1389965 2223944 2779930 5559860 11119720 2580053033 5160106066 10320212132 12900265165 20640424264 25800530330 51601060660 103202121320