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102312230 = 2510619643
BaseRepresentation
bin1100001100100…
…10100100100110
321010111222222212
412012102210212
5202142442410
614052523422
72351432246
oct606224446
9233458885
10102312230
1152830769
122a320572
13182730a7
14d833b26
158eaeb05
hex6192926

102312230 has 16 divisors (see below), whose sum is σ = 184354704. Its totient is φ = 40882080.

The previous prime is 102312227. The next prime is 102312247. The reversal of 102312230 is 32213201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5789 + ... + 15431.

It is an arithmetic number, because the mean of its divisors is an integer number (11522169).

Almost surely, 2102312230 is an apocalyptic number.

102312230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102312230 is a deficient number, since it is larger than the sum of its proper divisors (82042474).

102312230 is a wasteful number, since it uses less digits than its factorization.

102312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10711.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 102312230 is about 10114.9508155008. The cubic root of 102312230 is about 467.7091326991.

Adding to 102312230 its reverse (32213201), we get a palindrome (134525431).

The spelling of 102312230 in words is "one hundred two million, three hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 1061 2122 5305 9643 10610 19286 48215 96430 10231223 20462446 51156115 102312230