Search a number
-
+
85157024 = 252661157
BaseRepresentation
bin1010001001101…
…10010010100000
312221020102110212
411010312102200
5133300011044
612241113252
72052552131
oct504662240
9187212425
1085157024
1144083807
1224628828
1314847794
14b449c88
157721a9e
hex51364a0

85157024 has 12 divisors (see below), whose sum is σ = 167652954. Its totient is φ = 42578496.

The previous prime is 85157011. The next prime is 85157027. The reversal of 85157024 is 42075158.

It can be written as a sum of positive squares in only one way, i.e., 82810000 + 2347024 = 9100^2 + 1532^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2661157 = 85157024 / (8 + 5 + 1 + 5 + 7 + 0 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (85157027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330547 + ... + 1330610.

Almost surely, 285157024 is an apocalyptic number.

It is an amenable number.

85157024 is a deficient number, since it is larger than the sum of its proper divisors (82495930).

85157024 is a wasteful number, since it uses less digits than its factorization.

85157024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661167 (or 2661159 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 85157024 is about 9228.0563500664. The cubic root of 85157024 is about 439.9535488153.

It can be divided in two parts, 851 and 57024, that added together give a palindrome (57875).

The spelling of 85157024 in words is "eighty-five million, one hundred fifty-seven thousand, twenty-four".

Divisors: 1 2 4 8 16 32 2661157 5322314 10644628 21289256 42578512 85157024