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11311372800 = 293252713283
BaseRepresentation
bin10101000100011010…
…11101101000000000
31002012022100021102100
422202031131220000
5141131202412200
65110225550400
7550210040160
oct124215355000
932168307370
1011311372800
114884a7a892
1222381a5400
1310b35a7b00
147943a45a0
15463097d00
hex2a235da00

11311372800 has 1080 divisors, whose sum is σ = 50699192544. Its totient is φ = 2357821440.

The previous prime is 11311372799. The next prime is 11311372811. The reversal of 11311372800 is 827311311.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 136281559 + ... + 136281641.

Almost surely, 211311372800 is an apocalyptic number.

11311372800 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 11311372800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25349596272).

11311372800 is an abundant number, since it is smaller than the sum of its proper divisors (39387819744).

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

11311372800 is a wasteful number, since it uses less digits than its factorization.

11311372800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 11311372800 in words is "eleven billion, three hundred eleven million, three hundred seventy-two thousand, eight hundred".