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102100001101 = 714585714443
BaseRepresentation
bin101111100010110100…
…0100110000101001101
3100202112112011110012021
41133011220212011031
53133100100013401
6114523141210141
710243063455460
oct1370550460515
9322475143167
10102100001101
113a333874aaa
1217955100951
1398218cac47
144d27d0b2d7
1529c87a22a1
hex17c5a2614d

102100001101 has 4 divisors (see below), whose sum is σ = 116685715552. Its totient is φ = 87514286652.

The previous prime is 102100001077. The next prime is 102100001119. The reversal of 102100001101 is 101100001201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101100001201 = 443228216707.

It is a cyclic number.

It is not a de Polignac number, because 102100001101 - 217 = 102099870029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 14585714443 = 102100001101 / (1 + 0 + 2 + 1 + 0 + 0 + 0 + 0 + 1 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100001161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7292857215 + ... + 7292857228.

It is an arithmetic number, because the mean of its divisors is an integer number (29171428888).

Almost surely, 2102100001101 is an apocalyptic number.

It is an amenable number.

102100001101 is a deficient number, since it is larger than the sum of its proper divisors (14585714451).

102100001101 is an equidigital number, since it uses as much as digits as its factorization.

102100001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14585714450.

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

Adding to 102100001101 its reverse (101100001201), we get a palindrome (203200002302).

The spelling of 102100001101 in words is "one hundred two billion, one hundred million, one thousand, one hundred one".

Divisors: 1 7 14585714443 102100001101