Search a number
-
+
87928988962 = 243964494481
BaseRepresentation
bin101000111100011111…
…0011110010100100010
322101221220220110001211
41101320332132110202
52420034310121322
6104221035220334
76231651034333
oct1217076362442
9271856813054
1087928988962
1134321692921
121505b2a76aa
1383a3a44169
144381c3a28a
15244963db77
hex1478f9e522

87928988962 has 4 divisors (see below), whose sum is σ = 131893483446. Its totient is φ = 43964494480.

The previous prime is 87928988933. The next prime is 87928988963. The reversal of 87928988962 is 26988982978.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83052899721 + 4876089241 = 288189^2 + 69829^2 .

It is not an unprimeable number, because it can be changed into a prime (87928988963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21982247239 + ... + 21982247242.

Almost surely, 287928988962 is an apocalyptic number.

87928988962 is a deficient number, since it is larger than the sum of its proper divisors (43964494484).

87928988962 is a wasteful number, since it uses less digits than its factorization.

87928988962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43964494483.

The product of its digits is 501645312, while the sum is 76.

The spelling of 87928988962 in words is "eighty-seven billion, nine hundred twenty-eight million, nine hundred eighty-eight thousand, nine hundred sixty-two".

Divisors: 1 2 43964494481 87928988962