Search a number
-
+
2939987554 = 27229999873
BaseRepresentation
bin1010111100111100…
…1010011001100010
321120220002211201221
42233033022121202
522010114100204
61203422045254
7132566324200
oct25717123142
97526084657
102939987554
111279601189
126a071982a
1337b131a0a
141dc664070
1512318c654
hexaf3ca662

2939987554 has 12 divisors (see below), whose sum is σ = 5129978454. Its totient is φ = 1259994624.

The previous prime is 2939987527. The next prime is 2939987587. The reversal of 2939987554 is 4557899392.

It can be written as a sum of positive squares in only one way, i.e., 2913516529 + 26471025 = 53977^2 + 5145^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2939987492 and 2939987501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14999839 + ... + 15000034.

Almost surely, 22939987554 is an apocalyptic number.

2939987554 is a deficient number, since it is larger than the sum of its proper divisors (2189990900).

2939987554 is a wasteful number, since it uses less digits than its factorization.

2939987554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29999889 (or 29999882 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 61.

The square root of 2939987554 is about 54221.6520773759. The cubic root of 2939987554 is about 1432.5677298134.

The spelling of 2939987554 in words is "two billion, nine hundred thirty-nine million, nine hundred eighty-seven thousand, five hundred fifty-four".

Divisors: 1 2 7 14 49 98 29999873 59999746 209999111 419998222 1469993777 2939987554