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82123152 = 2432277537
BaseRepresentation
bin1001110010100…
…01100110010000
312201112021210020
410321101212100
5132010420102
612052103440
72015015046
oct471214620
9181467706
1082123152
11423a1381
1223604b80
13140248a7
14ac9a396
157322bbc
hex4e51990

82123152 has 40 divisors (see below), whose sum is σ = 213114336. Its totient is φ = 27250176.

The previous prime is 82123127. The next prime is 82123183. The reversal of 82123152 is 25132128.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7128 + ... + 14664.

Almost surely, 282123152 is an apocalyptic number.

It is an amenable number.

82123152 is an abundant number, since it is smaller than the sum of its proper divisors (130991184).

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

82123152 is a wasteful number, since it uses less digits than its factorization.

82123152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7775 (or 7769 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 82123152 is about 9062.1825185769. The cubic root of 82123152 is about 434.6655323008.

The spelling of 82123152 in words is "eighty-two million, one hundred twenty-three thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 227 454 681 908 1362 1816 2724 3632 5448 7537 10896 15074 22611 30148 45222 60296 90444 120592 180888 361776 1710899 3421798 5132697 6843596 10265394 13687192 20530788 27374384 41061576 82123152