Search a number
-
+
85467553 = 292947157
BaseRepresentation
bin1010001100000…
…10000110100001
312221211012102221
411012002012201
5133334430203
612251511041
72055314353
oct506020641
9187735387
1085467553
1144276046
1224758481
1314925c22
14b4cb0d3
157783abd
hex51821a1

85467553 has 4 divisors (see below), whose sum is σ = 88414740. Its totient is φ = 82520368.

The previous prime is 85467533. The next prime is 85467601. The reversal of 85467553 is 35576458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35576458 = 217788229.

It can be written as a sum of positive squares in 2 ways, for example, as 16378209 + 69089344 = 4047^2 + 8312^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85467553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85467533) 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, 1473550 + ... + 1473607.

It is an arithmetic number, because the mean of its divisors is an integer number (22103685).

Almost surely, 285467553 is an apocalyptic number.

It is an amenable number.

85467553 is a deficient number, since it is larger than the sum of its proper divisors (2947187).

85467553 is a wasteful number, since it uses less digits than its factorization.

85467553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947186.

The product of its digits is 504000, while the sum is 43.

The square root of 85467553 is about 9244.8663051447. The cubic root of 85467553 is about 440.4876703830.

The spelling of 85467553 in words is "eighty-five million, four hundred sixty-seven thousand, five hundred fifty-three".

Divisors: 1 29 2947157 85467553