Search a number
-
+
19680532 = 2211343541
BaseRepresentation
bin100101100010…
…0110100010100
31101000212121121
41023010310110
520014234112
61541453324
7326165434
oct113046424
941025547
1019680532
1110122303
126711244
134100bb1
1428842c4
151adb407
hex12c4d14

19680532 has 12 divisors (see below), whose sum is σ = 34746516. Its totient is φ = 9752960.

The previous prime is 19680527. The next prime is 19680547. The reversal of 19680532 is 23508691.

It can be written as a sum of positive squares in 2 ways, for example, as 1052676 + 18627856 = 1026^2 + 4316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21319 + ... + 22222.

It is an arithmetic number, because the mean of its divisors is an integer number (2895543).

Almost surely, 219680532 is an apocalyptic number.

It is an amenable number.

19680532 is a deficient number, since it is larger than the sum of its proper divisors (15065984).

19680532 is a wasteful number, since it uses less digits than its factorization.

19680532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43658 (or 43656 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 19680532 is about 4436.2745631893. The cubic root of 19680532 is about 269.9887146632.

The spelling of 19680532 in words is "nineteen million, six hundred eighty thousand, five hundred thirty-two".

Divisors: 1 2 4 113 226 452 43541 87082 174164 4920133 9840266 19680532