Search a number
-
+
87281950795 = 5135032669581
BaseRepresentation
bin101000101001001101…
…0001110000001001011
322100021211101111120021
41101102122032001023
52412223134411140
6104032523041311
76206633224564
oct1212232160113
9270254344507
1087281950795
113401a427536
1214aba670237
1382cc989340
14431dd2b16b
15240c92db4a
hex145268e04b

87281950795 has 16 divisors (see below), whose sum is σ = 113019423552. Its totient is φ = 64326199680.

The previous prime is 87281950759. The next prime is 87281950823. The reversal of 87281950795 is 59705918278.

It is not a de Polignac number, because 87281950795 - 215 = 87281918027 is a prime.

It is a super-2 number, since 2×872819507952 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302096 + ... + 1367485.

It is an arithmetic number, because the mean of its divisors is an integer number (7063713972).

Almost surely, 287281950795 is an apocalyptic number.

87281950795 is a deficient number, since it is larger than the sum of its proper divisors (25737472757).

87281950795 is a wasteful number, since it uses less digits than its factorization.

87281950795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670102.

The product of its (nonzero) digits is 12700800, while the sum is 61.

The spelling of 87281950795 in words is "eighty-seven billion, two hundred eighty-one million, nine hundred fifty thousand, seven hundred ninety-five".

Divisors: 1 5 13 65 503 2515 6539 32695 2669581 13347905 34704553 173522765 1342799243 6713996215 17456390159 87281950795