Search a number
-
+
90025741 = 136925057
BaseRepresentation
bin1010101110110…
…10111100001101
320021101210002201
411113122330031
5141021310431
612533321501
72142130501
oct527327415
9207353081
1090025741
11468a9743
1226196291
1315860890
14bd56301
157d84461
hex55daf0d

90025741 has 4 divisors (see below), whose sum is σ = 96950812. Its totient is φ = 83100672.

The previous prime is 90025729. The next prime is 90025751. The reversal of 90025741 is 14752009.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14752009 = 16279067.

It can be written as a sum of positive squares in 2 ways, for example, as 11703241 + 78322500 = 3421^2 + 8850^2 .

It is a cyclic number.

It is not a de Polignac number, because 90025741 - 27 = 90025613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90025721) 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, 3462516 + ... + 3462541.

It is an arithmetic number, because the mean of its divisors is an integer number (24237703).

Almost surely, 290025741 is an apocalyptic number.

It is an amenable number.

90025741 is a deficient number, since it is larger than the sum of its proper divisors (6925071).

90025741 is a wasteful number, since it uses less digits than its factorization.

90025741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925070.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 90025741 is about 9488.1895533342. The cubic root of 90025741 is about 448.1831949682.

The spelling of 90025741 in words is "ninety million, twenty-five thousand, seven hundred forty-one".

Divisors: 1 13 6925057 90025741