Search a number
-
+
45800713181 = 371237857113
BaseRepresentation
bin101010101001111011…
…110110101111011101
311101012221010022001102
4222221323312233131
51222244440310211
633012432122445
73210661432016
oct525173665735
9141187108042
1045800713181
1118473343783
128a62696425
13441ba83822
142306b4200d
1512d0da6a3b
hexaa9ef6bdd

45800713181 has 4 divisors (see below), whose sum is σ = 47038570332. Its totient is φ = 44562856032.

The previous prime is 45800713171. The next prime is 45800713223. The reversal of 45800713181 is 18131700854.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18131700854 = 29065850427.

It can be written as a sum of positive squares in 2 ways, for example, as 25119397081 + 20681316100 = 158491^2 + 143810^2 .

It is a cyclic number.

It is not a de Polignac number, because 45800713181 - 210 = 45800712157 is a prime.

It is a super-2 number, since 2×458007131812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45800713151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618928520 + ... + 618928593.

It is an arithmetic number, because the mean of its divisors is an integer number (11759642583).

Almost surely, 245800713181 is an apocalyptic number.

It is an amenable number.

45800713181 is a deficient number, since it is larger than the sum of its proper divisors (1237857151).

45800713181 is a wasteful number, since it uses less digits than its factorization.

45800713181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237857150.

The product of its (nonzero) digits is 26880, while the sum is 38.

The spelling of 45800713181 in words is "forty-five billion, eight hundred million, seven hundred thirteen thousand, one hundred eighty-one".

Divisors: 1 37 1237857113 45800713181