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102112055 = 5181112831
BaseRepresentation
bin1100001011000…
…01101100110111
321010010211101222
412011201230313
5202120041210
614044340555
72346636533
oct605415467
9233124358
10102112055
1152704331
122a24475b
1318202c46
14d7c0bc3
158e70655
hex6161b37

102112055 has 8 divisors (see below), whose sum is σ = 123212544. Its totient is φ = 81237600.

The previous prime is 102112009. The next prime is 102112063. The reversal of 102112055 is 550211201.

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

It is not a de Polignac number, because 102112055 - 214 = 102095671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55511 + ... + 57320.

It is an arithmetic number, because the mean of its divisors is an integer number (15401568).

Almost surely, 2102112055 is an apocalyptic number.

102112055 is a deficient number, since it is larger than the sum of its proper divisors (21100489).

102112055 is a wasteful number, since it uses less digits than its factorization.

102112055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113017.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 102112055 is about 10105.0509647404. The cubic root of 102112055 is about 467.4039075380.

Adding to 102112055 its reverse (550211201), we get a palindrome (652323256).

The spelling of 102112055 in words is "one hundred two million, one hundred twelve thousand, fifty-five".

Divisors: 1 5 181 905 112831 564155 20422411 102112055