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52723000450 = 2523141981181
BaseRepresentation
bin110001000110100010…
…010010010010000010
312001002100121221000101
4301012202102102002
51330434042003300
640115352513014
73544345052401
oct610642222202
9161070557011
1052723000450
11203a583964a
12a2749ab76a
134c82c4a4b3
1427a222d638
15158896eb6a
hexc46892482

52723000450 has 48 divisors (see below), whose sum is σ = 101471005440. Its totient is φ = 20359944000.

The previous prime is 52723000417. The next prime is 52723000457. The reversal of 52723000450 is 5400032725.

52723000450 is a nontrivial binomial coefficient, being equal to C(324725, 2).

It is not an unprimeable number, because it can be changed into a prime (52723000457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 608860 + ... + 690040.

It is an arithmetic number, because the mean of its divisors is an integer number (2113979280).

Almost surely, 252723000450 is an apocalyptic number.

52723000450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52723000450 is the 324724-th triangular number.

52723000450 is the 108242-nd centered nonagonal number.

52723000450 is a deficient number, since it is larger than the sum of its proper divisors (48748004990).

52723000450 is a wasteful number, since it uses less digits than its factorization.

52723000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81643 (or 81638 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The spelling of 52723000450 in words is "fifty-two billion, seven hundred twenty-three million, four hundred fifty", and thus it is an aban number.

Divisors: 1 2 5 10 25 31 50 62 155 310 419 775 838 1550 2095 4190 10475 12989 20950 25978 64945 81181 129890 162362 324725 405905 649450 811810 2029525 2516611 4059050 5033222 12583055 25166110 34014839 62915275 68029678 125830550 170074195 340148390 850370975 1054460009 1700741950 2108920018 5272300045 10544600090 26361500225 52723000450