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82173370 = 2512236719
BaseRepresentation
bin1001110010111…
…01110110111010
312201121211200011
410321131312322
5132014021440
612053132134
72015314336
oct471356672
9181554604
1082173370
1142426084
122362a04a
13140416c6
14acb07c6
1573329ea
hex4e5ddba

82173370 has 16 divisors (see below), whose sum is σ = 148055040. Its totient is φ = 32837584.

The previous prime is 82173367. The next prime is 82173379. The reversal of 82173370 is 7337128.

It is not an unprimeable number, because it can be changed into a prime (82173379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8871 + ... + 15589.

It is an arithmetic number, because the mean of its divisors is an integer number (9253440).

Almost surely, 282173370 is an apocalyptic number.

82173370 is a deficient number, since it is larger than the sum of its proper divisors (65881670).

82173370 is a wasteful number, since it uses less digits than its factorization.

82173370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 82173370 is about 9064.9528404730. The cubic root of 82173370 is about 434.7541130295.

The spelling of 82173370 in words is "eighty-two million, one hundred seventy-three thousand, three hundred seventy".

Divisors: 1 2 5 10 1223 2446 6115 6719 12230 13438 33595 67190 8217337 16434674 41086685 82173370