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102512230 = 2510251223
BaseRepresentation
bin1100001110000…
…11011001100110
321010220011100021
412013003121212
5202220342410
614101105354
72353224322
oct607033146
9233804307
10102512230
1152957a57
122a3b825a
1318313132
14d886982
158eededa
hex61c3666

102512230 has 8 divisors (see below), whose sum is σ = 184522032. Its totient is φ = 41004888.

The previous prime is 102512209. The next prime is 102512231. The reversal of 102512230 is 32215201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102512231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5125602 + ... + 5125621.

It is an arithmetic number, because the mean of its divisors is an integer number (23065254).

Almost surely, 2102512230 is an apocalyptic number.

102512230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102512230 is a deficient number, since it is larger than the sum of its proper divisors (82009802).

102512230 is a wasteful number, since it uses less digits than its factorization.

102512230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251230.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102512230 is about 10124.8323442909. The cubic root of 102512230 is about 468.0136936846.

Adding to 102512230 its reverse (32215201), we get a palindrome (134727431).

The spelling of 102512230 in words is "one hundred two million, five hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 10251223 20502446 51256115 102512230