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823870252 = 221712115739
BaseRepresentation
bin110001000110110…
…100001100101100
32010102020221112001
4301012310030230
53141402322002
6213430222044
726262532042
oct6106641454
92112227461
10823870252
11393064a07
121abab4924
131018bcaba
147b5c0392
154c4dea87
hex311b432c

823870252 has 12 divisors (see below), whose sum is σ = 1526583240. Its totient is φ = 387703616.

The previous prime is 823870247. The next prime is 823870259. The reversal of 823870252 is 252078328.

It is not an unprimeable number, because it can be changed into a prime (823870259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6057802 + ... + 6057937.

It is an arithmetic number, because the mean of its divisors is an integer number (127215270).

Almost surely, 2823870252 is an apocalyptic number.

It is an amenable number.

823870252 is a deficient number, since it is larger than the sum of its proper divisors (702712988).

823870252 is a wasteful number, since it uses less digits than its factorization.

823870252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115760 (or 12115758 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 823870252 is about 28703.1401069639. The cubic root of 823870252 is about 937.4604198283.

The spelling of 823870252 in words is "eight hundred twenty-three million, eight hundred seventy thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 12115739 24231478 48462956 205967563 411935126 823870252