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80162690 = 25101139571
BaseRepresentation
bin1001100011100…
…10111110000010
312120211200112112
410301302332002
5131010201230
611542055322
71662241316
oct461627602
9176750475
1080162690
1141282463
1222a1a542
13137b945a
14a909b46
157086d95
hex4c72f82

80162690 has 32 divisors (see below), whose sum is σ = 147026880. Its totient is φ = 31464000.

The previous prime is 80162689. The next prime is 80162711. The reversal of 80162690 is 9626108.

It is a super-2 number, since 2×801626902 = 12852113736072200, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 140105 + ... + 140675.

It is an arithmetic number, because the mean of its divisors is an integer number (4594590).

Almost surely, 280162690 is an apocalyptic number.

80162690 is a deficient number, since it is larger than the sum of its proper divisors (66864190).

80162690 is a wasteful number, since it uses less digits than its factorization.

80162690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80162690 is about 8953.3619384006. The cubic root of 80162690 is about 431.1788277141.

Adding to 80162690 its reverse (9626108), we get a palindrome (89788798).

The spelling of 80162690 in words is "eighty million, one hundred sixty-two thousand, six hundred ninety".

Divisors: 1 2 5 10 101 139 202 278 505 571 695 1010 1142 1390 2855 5710 14039 28078 57671 70195 79369 115342 140390 158738 288355 396845 576710 793690 8016269 16032538 40081345 80162690