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623432030 = 25134795631
BaseRepresentation
bin100101001010001…
…101000101011110
31121110002121222012
4211022031011132
52234044311110
6141510151222
721310041044
oct4512150536
91543077865
10623432030
1129aa02791
12154952512
139c2111c0
145cb26394
1539aea905
hex2528d15e

623432030 has 16 divisors (see below), whose sum is σ = 1208499264. Its totient is φ = 230190240.

The previous prime is 623432027. The next prime is 623432059. The reversal of 623432030 is 30234326.

It is a junction number, because it is equal to n+sod(n) for n = 623431987 and 623432005.

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, 2397686 + ... + 2397945.

It is an arithmetic number, because the mean of its divisors is an integer number (75531204).

Almost surely, 2623432030 is an apocalyptic number.

623432030 is a deficient number, since it is larger than the sum of its proper divisors (585067234).

623432030 is a wasteful number, since it uses less digits than its factorization.

623432030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795651.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 623432030 is about 24968.6209070505. The cubic root of 623432030 is about 854.2723903349.

Adding to 623432030 its reverse (30234326), we get a palindrome (653666356).

The spelling of 623432030 in words is "six hundred twenty-three million, four hundred thirty-two thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 4795631 9591262 23978155 47956310 62343203 124686406 311716015 623432030