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232123430 = 25711301459
BaseRepresentation
bin11011101010111…
…10110000100110
3121011210002111002
431311132300212
5433410422210
635011113302
75516005460
oct1565366046
9534702432
10232123430
1110a033850
12658a2832
1339123956
1422b85130
15155a24a5
hexdd5ec26

232123430 has 32 divisors (see below), whose sum is σ = 520922880. Its totient is φ = 72349920.

The previous prime is 232123403. The next prime is 232123433. The reversal of 232123430 is 34321232.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232123433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149960 + ... + 151499.

It is an arithmetic number, because the mean of its divisors is an integer number (16278840).

Almost surely, 2232123430 is an apocalyptic number.

232123430 is an abundant number, since it is smaller than the sum of its proper divisors (288799450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232123430 is a wasteful number, since it uses less digits than its factorization.

232123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301484.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 232123430 is about 15235.5974612091. The cubic root of 232123430 is about 614.5723159518.

Adding to 232123430 its reverse (34321232), we get a palindrome (266444662).

The spelling of 232123430 in words is "two hundred thirty-two million, one hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 301459 602918 1507295 2110213 3014590 3316049 4220426 6632098 10551065 16580245 21102130 23212343 33160490 46424686 116061715 232123430