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102123230 = 25115771609
BaseRepresentation
bin1100001011001…
…00011011011110
321010011101201212
412011210123132
5202120420410
614044504422
72350014236
oct605443336
9233141655
10102123230
1152711770
122a24b112
1318208061
14d7c4cc6
158e73b05
hex61646de

102123230 has 32 divisors (see below), whose sum is σ = 201005280. Its totient is φ = 37048320.

The previous prime is 102123227. The next prime is 102123247. The reversal of 102123230 is 32321201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62666 + ... + 64274.

It is an arithmetic number, because the mean of its divisors is an integer number (6281415).

Almost surely, 2102123230 is an apocalyptic number.

102123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102123230 is a deficient number, since it is larger than the sum of its proper divisors (98882050).

102123230 is a wasteful number, since it uses less digits than its factorization.

102123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204.

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

The square root of 102123230 is about 10105.6038909112. The cubic root of 102123230 is about 467.4209575919.

Adding to 102123230 its reverse (32321201), we get a palindrome (134444431).

The spelling of 102123230 in words is "one hundred two million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 577 1154 1609 2885 3218 5770 6347 8045 12694 16090 17699 31735 35398 63470 88495 176990 928393 1856786 4641965 9283930 10212323 20424646 51061615 102123230