Search a number
-
+
55819833460 = 2258931359457
BaseRepresentation
bin110011111111000111…
…110001000001110100
312100002011212100021021
4303333013301001310
51403304334132320
641350540430524
74014160520146
oct637707610164
9170064770237
1055819833460
1121744928076
12a999b48444
135357706b71
1429b7640c96
1516ba78edaa
hexcff1f1074

55819833460 has 24 divisors (see below), whose sum is σ = 118538751240. Its totient is φ = 22077057024.

The previous prime is 55819833437. The next prime is 55819833527. The reversal of 55819833460 is 6433891855.

It can be written as a sum of positive squares in 4 ways, for example, as 9596553444 + 46223280016 = 97962^2 + 214996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55819833398 and 55819833407.

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, 15677949 + ... + 15681508.

It is an arithmetic number, because the mean of its divisors is an integer number (4939114635).

Almost surely, 255819833460 is an apocalyptic number.

It is an amenable number.

55819833460 is an abundant number, since it is smaller than the sum of its proper divisors (62718917780).

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

55819833460 is a wasteful number, since it uses less digits than its factorization.

55819833460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31359555 (or 31359553 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 55819833460 in words is "fifty-five billion, eight hundred nineteen million, eight hundred thirty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 31359457 62718914 125437828 156797285 313594570 627189140 2790991673 5581983346 11163966692 13954958365 27909916730 55819833460