Search a number
-
+
1140787146 = 231245715263
BaseRepresentation
bin100001111111111…
…0000011111001010
32221111120222202210
41003333300133022
54314020142041
6305111005550
740161350022
oct10377603712
92844528683
101140787146
11535a432a4
1227a0698b6
131524618a5
14ab718a82
156a241016
hex43ff07ca

1140787146 has 16 divisors (see below), whose sum is σ = 2281906944. Its totient is φ = 380206944.

The previous prime is 1140787129. The next prime is 1140787147. The reversal of 1140787146 is 6417870411.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1140787147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67111 + ... + 82373.

It is an arithmetic number, because the mean of its divisors is an integer number (142619184).

Almost surely, 21140787146 is an apocalyptic number.

1140787146 is an abundant number, since it is smaller than the sum of its proper divisors (1141119798).

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

1140787146 is a wasteful number, since it uses less digits than its factorization.

1140787146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27725.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 1140787146 is about 33775.5406470422. The cubic root of 1140787146 is about 1044.8843063848.

The spelling of 1140787146 in words is "one billion, one hundred forty million, seven hundred eighty-seven thousand, one hundred forty-six".

Divisors: 1 2 3 6 12457 15263 24914 30526 37371 45789 74742 91578 190131191 380262382 570393573 1140787146