Search a number
-
+
1021241982 = 231915757059
BaseRepresentation
bin111100110111101…
…110101001111110
32122011122110122010
4330313232221332
54042414220412
6245200432050
734210261605
oct7467565176
92564573563
101021241982
11484512242
12246018626
131337669c7
14998baa3c
155e9ca33c
hex3cdeea7e

1021241982 has 32 divisors (see below), whose sum is σ = 2163715200. Its totient is φ = 320437728.

The previous prime is 1021241957. The next prime is 1021241987. The reversal of 1021241982 is 2891421201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021241987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10632 + ... + 46427.

It is an arithmetic number, because the mean of its divisors is an integer number (67616100).

Almost surely, 21021241982 is an apocalyptic number.

1021241982 is an abundant number, since it is smaller than the sum of its proper divisors (1142473218).

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

1021241982 is a wasteful number, since it uses less digits than its factorization.

1021241982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57240.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1021241982 is about 31956.8769124894. The cubic root of 1021241982 is about 1007.0311083181.

The spelling of 1021241982 in words is "one billion, twenty-one million, two hundred forty-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 19 38 57 114 157 314 471 942 2983 5966 8949 17898 57059 114118 171177 342354 1084121 2168242 3252363 6504726 8958263 17916526 26874789 53749578 170206997 340413994 510620991 1021241982