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80202668 = 22713217997
BaseRepresentation
bin1001100011111…
…00101110101100
312120220201101012
410301330232230
5131012441133
611543004352
71662466010
oct461745654
9176821335
1080202668
11412aa4a7
1222a396b8
1313801700
14a91a540
157093b48
hex4c7cbac

80202668 has 72 divisors (see below), whose sum is σ = 184095072. Its totient is φ = 29832192.

The previous prime is 80202649. The next prime is 80202671. The reversal of 80202668 is 86620208.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79946 + ... + 80942.

It is an arithmetic number, because the mean of its divisors is an integer number (2556876).

Almost surely, 280202668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80202668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92047536).

80202668 is an abundant number, since it is smaller than the sum of its proper divisors (103892404).

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

80202668 is a wasteful number, since it uses less digits than its factorization.

80202668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 80202668 is about 8955.5942293072. The cubic root of 80202668 is about 431.2504936492.

The spelling of 80202668 in words is "eighty million, two hundred two thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 13 14 17 26 28 34 52 68 91 119 169 182 221 238 338 364 442 476 676 884 997 1183 1547 1994 2366 2873 3094 3988 4732 5746 6188 6979 11492 12961 13958 16949 20111 25922 27916 33898 40222 51844 67796 80444 90727 118643 168493 181454 220337 237286 336986 362908 440674 474572 673972 881348 1179451 1542359 2358902 2864381 3084718 4717804 5728762 6169436 11457524 20050667 40101334 80202668