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102112255 = 572917493
BaseRepresentation
bin1100001011000…
…01101111111111
321010010211200101
412011201233333
5202120043010
614044341531
72346640240
oct605415777
9233124611
10102112255
11527044a3
122a2448a7
131820306b
14d7c0cc7
158e7073a
hex6161bff

102112255 has 8 divisors (see below), whose sum is σ = 140039712. Its totient is φ = 70019808.

The previous prime is 102112253. The next prime is 102112259. The reversal of 102112255 is 552211201.

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 102112255 - 21 = 102112253 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 (102112253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458712 + ... + 1458781.

It is an arithmetic number, because the mean of its divisors is an integer number (17504964).

Almost surely, 2102112255 is an apocalyptic number.

102112255 is a deficient number, since it is larger than the sum of its proper divisors (37927457).

102112255 is an equidigital number, since it uses as much as digits as its factorization.

102112255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917505.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 102112255 is about 10105.0608607766. The cubic root of 102112255 is about 467.4042126953.

Adding to 102112255 its reverse (552211201), we get a palindrome (654323456).

The spelling of 102112255 in words is "one hundred two million, one hundred twelve thousand, two hundred fifty-five".

Divisors: 1 5 7 35 2917493 14587465 20422451 102112255