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100112112191 = 7131100133101
BaseRepresentation
bin101110100111100100…
…1011001101000111111
3100120101222121020021002
41131033021121220333
53120012200042231
6113554010000515
710142604625130
oct1351711315077
9316358536232
10100112112191
113950374a703
121749b41613b
139595b04310
144bb9cc5c87
15290ded30cb
hex174f259a3f

100112112191 has 8 divisors (see below), whose sum is σ = 123214907424. Its totient is φ = 79209583200.

The previous prime is 100112112097. The next prime is 100112112223. The reversal of 100112112191 is 191211211001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100112112191 - 210 = 100112111167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112112091) 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, 550066460 + ... + 550066641.

It is an arithmetic number, because the mean of its divisors is an integer number (15401863428).

Almost surely, 2100112112191 is an apocalyptic number.

100112112191 is a deficient number, since it is larger than the sum of its proper divisors (23102795233).

100112112191 is a wasteful number, since it uses less digits than its factorization.

100112112191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100133121.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 100112112191 its reverse (191211211001), we get a palindrome (291323323192).

The spelling of 100112112191 in words is "one hundred billion, one hundred twelve million, one hundred twelve thousand, one hundred ninety-one".

Divisors: 1 7 13 91 1100133101 7700931707 14301730313 100112112191