Search a number
-
+
123132230 = 2513947171
BaseRepresentation
bin1110101011011…
…01100101000110
322120200202122222
413111231211012
5223010212410
620115052342
73023415044
oct725554506
9276622588
10123132230
1163561081
12352a10b2
131c682810
14124d3394
15ac23955
hex756d946

123132230 has 16 divisors (see below), whose sum is σ = 238687344. Its totient is φ = 45464160.

The previous prime is 123132211. The next prime is 123132257. The reversal of 123132230 is 32231321.

It is a junction number, because it is equal to n+sod(n) for n = 123132199 and 123132208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473456 + ... + 473715.

It is an arithmetic number, because the mean of its divisors is an integer number (14917959).

Almost surely, 2123132230 is an apocalyptic number.

123132230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123132230 is a deficient number, since it is larger than the sum of its proper divisors (115555114).

123132230 is a wasteful number, since it uses less digits than its factorization.

123132230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947191.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123132230 is about 11096.4962938758. The cubic root of 123132230 is about 497.4971322108.

Adding to 123132230 its reverse (32231321), we get a palindrome (155363551).

Subtracting from 123132230 its reverse (32231321), we obtain a palindrome (90900909).

The spelling of 123132230 in words is "one hundred twenty-three million, one hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 947171 1894342 4735855 9471710 12313223 24626446 61566115 123132230