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102100010111 = 1119797148523
BaseRepresentation
bin101111100010110100…
…0101000010001111111
3100202112112011220112222
41133011220220101333
53133100100310421
6114523141315555
710243063523651
oct1370550502177
9322475156488
10102100010111
113a333880850
1217955105bbb
139821902088
144d27d106d1
1529c87a4cab
hex17c5a2847f

102100010111 has 16 divisors (see below), whose sum is σ = 112064819328. Its totient is φ = 92250026400.

The previous prime is 102100010101. The next prime is 102100010113. The reversal of 102100010111 is 111010001201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102100010111 - 222 = 102095815807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100010113) 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, 2079896 + ... + 2128418.

It is an arithmetic number, because the mean of its divisors is an integer number (7004051208).

Almost surely, 2102100010111 is an apocalyptic number.

102100010111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102100010111 is a deficient number, since it is larger than the sum of its proper divisors (9964809217).

102100010111 is a wasteful number, since it uses less digits than its factorization.

102100010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49702.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 102100010111 its reverse (111010001201), we get a palindrome (213110011312).

The spelling of 102100010111 in words is "one hundred two billion, one hundred million, ten thousand, one hundred eleven".

Divisors: 1 11 197 971 2167 10681 48523 191287 533753 2104157 9559031 47115833 105149341 518274163 9281819101 102100010111