Search a number
-
+
2987663172 = 2231329660403
BaseRepresentation
bin1011001000010100…
…0001111101000100
321201012211000101120
42302011001331010
522104320210142
61212243553540
7134015501154
oct26205017504
97635730346
102987663172
1112a350461a
126b468b8b0
13387c85140
14204b14764
151274587ec
hexb2141f44

2987663172 has 48 divisors (see below), whose sum is σ = 7766351040. Its totient is φ = 887580288.

The previous prime is 2987663141. The next prime is 2987663207. The reversal of 2987663172 is 2713667892.

It is a super-2 number, since 2×29876631722 = 17852262458650203168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325678 + ... + 334725.

It is an arithmetic number, because the mean of its divisors is an integer number (161798980).

Almost surely, 22987663172 is an apocalyptic number.

It is an amenable number.

2987663172 is an abundant number, since it is smaller than the sum of its proper divisors (4778687868).

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

2987663172 is a wasteful number, since it uses less digits than its factorization.

2987663172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660452 (or 660450 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 51.

The square root of 2987663172 is about 54659.5204150201. The cubic root of 2987663172 is about 1440.2698780441.

The spelling of 2987663172 in words is "two billion, nine hundred eighty-seven million, six hundred sixty-three thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 13 26 29 39 52 58 78 87 116 156 174 348 377 754 1131 1508 2262 4524 660403 1320806 1981209 2641612 3962418 7924836 8585239 17170478 19151687 25755717 34340956 38303374 51511434 57455061 76606748 103022868 114910122 229820244 248971931 497943862 746915793 995887724 1493831586 2987663172