Search a number
-
+
85912930 = 258591293
BaseRepresentation
bin1010001111011…
…10110101100010
312222122211101101
411013232311202
5133443203210
612305225014
72062151005
oct507566542
9188584341
1085912930
114454a724
122493216a
1314a5086c
14b5a553c
157820a3a
hex51eed62

85912930 has 8 divisors (see below), whose sum is σ = 154643292. Its totient is φ = 34365168.

The previous prime is 85912921. The next prime is 85912933. The reversal of 85912930 is 3921958.

It can be written as a sum of positive squares in 2 ways, for example, as 81956809 + 3956121 = 9053^2 + 1989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 85912930.

It is not an unprimeable number, because it can be changed into a prime (85912933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4295637 + ... + 4295656.

Almost surely, 285912930 is an apocalyptic number.

85912930 is a deficient number, since it is larger than the sum of its proper divisors (68730362).

85912930 is a wasteful number, since it uses less digits than its factorization.

85912930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591300.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 85912930 is about 9268.9228068854. The cubic root of 85912930 is about 441.2514818302.

The spelling of 85912930 in words is "eighty-five million, nine hundred twelve thousand, nine hundred thirty".

Divisors: 1 2 5 10 8591293 17182586 42956465 85912930