Search a number
-
+
11385878400 = 2734521331109
BaseRepresentation
bin10101001101010011…
…01011011110000000
31002101111112112220000
422212221223132000
5141304241102100
65121450520000
7552103240521
oct124651533600
932344475800
1011385878400
114913038a66
122259136000
1310c5b63370
147a023a848
154698b3900
hex2a6a6b780

11385878400 has 960 divisors, whose sum is σ = 47136566400. Its totient is φ = 2687385600.

The previous prime is 11385878353. The next prime is 11385878411. The reversal of 11385878400 is 487858311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 104457546 + ... + 104457654.

It is an arithmetic number, because the mean of its divisors is an integer number (49100590).

Almost surely, 211385878400 is an apocalyptic number.

11385878400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11385878400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23568283200).

11385878400 is an abundant number, since it is smaller than the sum of its proper divisors (35750688000).

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

11385878400 is a wasteful number, since it uses less digits than its factorization.

11385878400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 11385878400 in words is "eleven billion, three hundred eighty-five million, eight hundred seventy-eight thousand, four hundred".