Search a number
-
+
1142746800 = 24352131731139
BaseRepresentation
bin100010000011100…
…1110111010110000
32221122021112220120
41010013032322300
54320020344200
6305221010240
740214121216
oct10407167260
92848245816
101142746800
11537061648
1227a853980
13152999850
14abaa8cb6
156a4cb9a0
hex441ceeb0

1142746800 has 480 divisors, whose sum is σ = 4339722240. Its totient is φ = 254361600.

The previous prime is 1142746799. The next prime is 1142746807. The reversal of 1142746800 is 86472411.

It is not an unprimeable number, because it can be changed into a prime (1142746807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8221131 + ... + 8221269.

It is an arithmetic number, because the mean of its divisors is an integer number (9041088).

Almost surely, 21142746800 is an apocalyptic number.

1142746800 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 1142746800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169861120).

1142746800 is an abundant number, since it is smaller than the sum of its proper divisors (3196975440).

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

1142746800 is a wasteful number, since it uses less digits than its factorization.

1142746800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 1142746800 is about 33804.5381568807. The cubic root of 1142746800 is about 1045.4822678792.

The spelling of 1142746800 in words is "one billion, one hundred forty-two million, seven hundred forty-six thousand, eight hundred".