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102240202243 = 673980315497
BaseRepresentation
bin101111100110111111…
…1011010111000000011
3100202220021222102000011
41133031333122320003
53133341442432433
6114545110205351
710246415244244
oct1371577327003
9322807872004
10102240202243
113a3a5a24213
1217994053857
1398449789ba
144d3c7a4ccb
1529d5c483cd
hex17cdfdae03

102240202243 has 8 divisors (see below), whose sum is σ = 102409172208. Its totient is φ = 102071284224.

The previous prime is 102240202237. The next prime is 102240202261. The reversal of 102240202243 is 342202042201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102240202243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102240202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6589671 + ... + 6605167.

It is an arithmetic number, because the mean of its divisors is an integer number (12801146526).

Almost surely, 2102240202243 is an apocalyptic number.

102240202243 is a deficient number, since it is larger than the sum of its proper divisors (168969965).

102240202243 is an equidigital number, since it uses as much as digits as its factorization.

102240202243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25973.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 102240202243 its reverse (342202042201), we get a palindrome (444442244444).

The spelling of 102240202243 in words is "one hundred two billion, two hundred forty million, two hundred two thousand, two hundred forty-three".

Divisors: 1 673 9803 15497 6597419 10429481 151917091 102240202243