Search a number
-
+
18960739204 = 221145692
BaseRepresentation
bin10001101010001001…
…011110101110000100
31210221101222100110011
4101222021132232010
5302312422123304
612413242240004
71240602424021
oct215211365604
953841870404
1018960739204
11804a930000
123811ab6004
131a322a2514
14cbc278548
1575e8d1c04
hex46a25eb84

18960739204 has 45 divisors (see below), whose sum is σ = 36563455285. Its totient is φ = 8603371040.

The previous prime is 18960739181. The next prime is 18960739211. The reversal of 18960739204 is 40293706981.

The square root of 18960739204 is 137698.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3125033604 + 15835705600 = 55902^2 + 125840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 33322632 + ... + 33323200.

Almost surely, 218960739204 is an apocalyptic number.

18960739204 is the 137698-th square number.

It is an amenable number.

18960739204 is a deficient number, since it is larger than the sum of its proper divisors (17602716081).

18960739204 is an frugal number, since it uses more digits than its factorization.

18960739204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

Multiplying 18960739204 by its sum of digits (49), we get a square (929076220996 = 9638862).

The spelling of 18960739204 in words is "eighteen billion, nine hundred sixty million, seven hundred thirty-nine thousand, two hundred four".

Divisors: 1 2 4 11 22 44 121 242 484 569 1138 1331 2276 2662 5324 6259 12518 14641 25036 29282 58564 68849 137698 275396 323761 647522 757339 1295044 1514678 3029356 3561371 7122742 8330729 14245484 16661458 33322916 39175081 78350162 156700324 430925891 861851782 1723703564 4740184801 9480369602 18960739204