Search a number
-
+
76768965 = 3457132083
BaseRepresentation
bin1001001001101…
…10011011000101
312100110021020000
410210312123011
5124123101330
611341231513
71621345140
oct444663305
9170407200
1076768965
113a374729
1221862599
1312b9b830
14a2a5057
156b16560
hex49366c5

76768965 has 80 divisors (see below), whose sum is σ = 169454208. Its totient is φ = 32379264.

The previous prime is 76768943. The next prime is 76769023. The reversal of 76768965 is 56986767.

It is a happy number.

It is not a de Polignac number, because 76768965 - 28 = 76768709 is a prime.

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 35814 + ... + 37896.

Almost surely, 276768965 is an apocalyptic number.

It is an amenable number.

76768965 is an abundant number, since it is smaller than the sum of its proper divisors (92685243).

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

76768965 is a wasteful number, since it uses less digits than its factorization.

76768965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120 (or 2111 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 76768965 is about 8761.7900568320. The cubic root of 76768965 is about 425.0061636938.

It can be divided in two parts, 7676 and 8965, that added together give a square (16641 = 1292).

The spelling of 76768965 in words is "seventy-six million, seven hundred sixty-eight thousand, nine hundred sixty-five".

Divisors: 1 3 5 7 9 13 15 21 27 35 39 45 63 65 81 91 105 117 135 189 195 273 315 351 405 455 567 585 819 945 1053 1365 1755 2083 2457 2835 4095 5265 6249 7371 10415 12285 14581 18747 27079 31245 36855 43743 56241 72905 81237 93735 131229 135395 168723 189553 218715 243711 281205 393687 406185 568659 656145 731133 843615 947765 1181061 1218555 1705977 1968435 2193399 2843295 3655665 5117931 5905305 8529885 10966995 15353793 25589655 76768965