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102223112 = 2312777889
BaseRepresentation
bin1100001011111…
…00110100001000
321010100110202012
412011330310020
5202132114422
614050555052
72350611365
oct605746410
9233313665
10102223112
115277a812
122a298a88
1318241664
14d80d46c
158e934e2
hex617cd08

102223112 has 8 divisors (see below), whose sum is σ = 191668350. Its totient is φ = 51111552.

The previous prime is 102223111. The next prime is 102223183. The reversal of 102223112 is 211322201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 28366276 = 8594^2 + 5326^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (102223111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388937 + ... + 6388952.

Almost surely, 2102223112 is an apocalyptic number.

It is an amenable number.

102223112 is a deficient number, since it is larger than the sum of its proper divisors (89445238).

102223112 is a wasteful number, since it uses less digits than its factorization.

102223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777895 (or 12777891 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102223112 is about 10110.5445946299. The cubic root of 102223112 is about 467.5732955323.

Adding to 102223112 its reverse (211322201), we get a palindrome (313545313).

The spelling of 102223112 in words is "one hundred two million, two hundred twenty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 12777889 25555778 51111556 102223112