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102100100101 = 19231072183539
BaseRepresentation
bin101111100010110100…
…0111110010000000101
3100202112112100110222221
41133011220332100011
53133100111200401
6114523143252341
710243064350216
oct1370550762005
9322475313887
10102100100101
113a33393241a
121795514a0b1
13982193401c
144d27d3540d
1529c87c17a1
hex17c5a3e405

102100100101 has 16 divisors (see below), whose sum is σ = 113194713600. Its totient is φ = 91656191088.

The previous prime is 102100100071. The next prime is 102100100111. The reversal of 102100100101 is 101001001201.

It is a cyclic number.

It is not a de Polignac number, because 102100100101 - 27 = 102100099973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100100111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045011 + ... + 1138528.

It is an arithmetic number, because the mean of its divisors is an integer number (7074669600).

Almost surely, 2102100100101 is an apocalyptic number.

It is an amenable number.

102100100101 is a deficient number, since it is larger than the sum of its proper divisors (11094613499).

102100100101 is a wasteful number, since it uses less digits than its factorization.

102100100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183688.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 102100100101 its reverse (101001001201), we get a palindrome (203101101302).

The spelling of 102100100101 in words is "one hundred two billion, one hundred million, one hundred thousand, one hundred one".

Divisors: 1 19 23 107 437 2033 2461 46759 2183539 41487241 50221397 233638673 954206543 4439134787 5373689479 102100100101