Search a number
-
+
1972482290 = 251711602837
BaseRepresentation
bin111010110010001…
…1011000011110010
312002110120111000122
41311210123003302
513014423413130
6523421050242
766610552142
oct16544330362
95073514018
101972482290
11922462159
124706b6982
132558611ac
14149d74922
15b82792e5
hex7591b0f2

1972482290 has 16 divisors (see below), whose sum is σ = 3759319512. Its totient is φ = 742581504.

The previous prime is 1972482271. The next prime is 1972482319. The reversal of 1972482290 is 922842791.

It can be written as a sum of positive squares in 4 ways, for example, as 1273990249 + 698492041 = 35693^2 + 26429^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5801249 + ... + 5801588.

Almost surely, 21972482290 is an apocalyptic number.

1972482290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1972482290 is a deficient number, since it is larger than the sum of its proper divisors (1786837222).

1972482290 is a wasteful number, since it uses less digits than its factorization.

1972482290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11602861.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1972482290 is about 44412.6366026607. The cubic root of 1972482290 is about 1254.1159872434.

The spelling of 1972482290 in words is "one billion, nine hundred seventy-two million, four hundred eighty-two thousand, two hundred ninety".

Divisors: 1 2 5 10 17 34 85 170 11602837 23205674 58014185 116028370 197248229 394496458 986241145 1972482290