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41297902181 = 192114398621
BaseRepresentation
bin100110011101100010…
…111111101001100101
310221121010021210120122
4212131202333221211
51134034230332211
630545541211325
72661254243114
oct463542775145
9127533253518
1041297902181
1116572653178
128006700b45
133b81c34713
141ddab03c7b
15111a9106db
hex99d8bfa65

41297902181 has 6 divisors (see below), whose sum is σ = 43585874982. Its totient is φ = 39124328040.

The previous prime is 41297902127. The next prime is 41297902199. The reversal of 41297902181 is 18120979214.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38970708100 + 2327194081 = 197410^2 + 48241^2 .

It is not a de Polignac number, because 41297902181 - 210 = 41297901157 is a prime.

It is a super-2 number, since 2×412979021812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41297902111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57198950 + ... + 57199671.

It is an arithmetic number, because the mean of its divisors is an integer number (7264312497).

Almost surely, 241297902181 is an apocalyptic number.

It is an amenable number.

41297902181 is a deficient number, since it is larger than the sum of its proper divisors (2287972801).

41297902181 is a wasteful number, since it uses less digits than its factorization.

41297902181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114398659 (or 114398640 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 41297902181 in words is "forty-one billion, two hundred ninety-seven million, nine hundred two thousand, one hundred eighty-one".

Divisors: 1 19 361 114398621 2173573799 41297902181