Search a number
-
+
811468909630 = 25546231485581
BaseRepresentation
bin10111100111011110101…
…00001110110000111110
32212120112122220201022101
423303233110032300332
5101243342020102010
61420441134535314
7112424645632231
oct13635724166076
92776478821271
10811468909630
11293162054305
1211132736753a
135b6a1091a32
142b3bd617418
151619510773a
hexbcef50ec3e

811468909630 has 16 divisors (see below), whose sum is σ = 1460671761024. Its totient is φ = 324581403040.

The previous prime is 811468909627. The next prime is 811468909649. The reversal of 811468909630 is 36909864118.

It is a super-2 number, since 2×8114689096302 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196561 + ... + 1289020.

It is an arithmetic number, because the mean of its divisors is an integer number (91291985064).

Almost surely, 2811468909630 is an apocalyptic number.

811468909630 is a deficient number, since it is larger than the sum of its proper divisors (649202851394).

811468909630 is a wasteful number, since it uses less digits than its factorization.

811468909630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540211.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 811468909630 in words is "eight hundred eleven billion, four hundred sixty-eight million, nine hundred nine thousand, six hundred thirty".

Divisors: 1 2 5 10 54623 109246 273115 546230 1485581 2971162 7427905 14855810 81146890963 162293781926 405734454815 811468909630