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100342302985 = 538951589873
BaseRepresentation
bin101110101110011011…
…1100000100100001001
3100121000000202010200001
41131130313200210021
53121000112143420
6114032511443001
710151401334251
oct1353467404411
9317000663601
10100342302985
1139611683431
1217544526461
1396016cc3a2
144bdc6c6961
152924302b0a
hex175cde0909

100342302985 has 8 divisors (see below), whose sum is σ = 120720305160. Its totient is φ = 80067481344.

The previous prime is 100342302943. The next prime is 100342302989. The reversal of 100342302985 is 589203243001.

It can be written as a sum of positive squares in 4 ways, for example, as 94711824 + 100247591161 = 9732^2 + 316619^2 .

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-100342302985 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100342302989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25792992 + ... + 25796881.

It is an arithmetic number, because the mean of its divisors is an integer number (15090038145).

Almost surely, 2100342302985 is an apocalyptic number.

It is an amenable number.

100342302985 is a deficient number, since it is larger than the sum of its proper divisors (20378002175).

100342302985 is an equidigital number, since it uses as much as digits as its factorization.

100342302985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51590267.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 100342302985 its reverse (589203243001), we get a palindrome (689545545986).

The spelling of 100342302985 in words is "one hundred billion, three hundred forty-two million, three hundred two thousand, nine hundred eighty-five".

Divisors: 1 5 389 1945 51589873 257949365 20068460597 100342302985