Search a number
-
+
85807431530768 = 249779791560639
BaseRepresentation
bin10011100000101010011001…
…011110011011100100010000
3102020211002222102211202202002
4103200222121132123210100
542221332104432441033
6502255220113013132
724034245100501133
oct2340523136334420
9366732872752662
1085807431530768
1125382800116462
12975a07b2541a8
1338b57b570a01c
14172915d67021a
159dc0acaa73e8
hex4e0a9979b910

85807431530768 has 40 divisors (see below), whose sum is σ = 166439358627840. Its totient is φ = 42855348124160.

The previous prime is 85807431530767. The next prime is 85807431530797. The reversal of 85807431530768 is 86703513470858.

It is not an unprimeable number, because it can be changed into a prime (85807431530767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152772593 + ... + 153333231.

It is an arithmetic number, because the mean of its divisors is an integer number (4160983965696).

Almost surely, 285807431530768 is an apocalyptic number.

It is an amenable number.

85807431530768 is a deficient number, since it is larger than the sum of its proper divisors (80631927097072).

85807431530768 is a wasteful number, since it uses less digits than its factorization.

85807431530768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571415 (or 571409 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 65.

The spelling of 85807431530768 in words is "eighty-five trillion, eight hundred seven billion, four hundred thirty-one million, five hundred thirty thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 977 1954 3908 7816 9791 15632 19582 39164 78328 156656 560639 1121278 2242556 4485112 8970224 9565807 19131614 38263228 76526456 153052912 547744303 1095488606 2190977212 4381954424 5489216449 8763908848 10978432898 21956865796 43913731592 87827463184 5362964470673 10725928941346 21451857882692 42903715765384 85807431530768