Search a number
-
+
905052740 = 22545252637
BaseRepresentation
bin110101111100100…
…000001001000100
32100002000102221212
4311330200021010
53323143141430
6225450230552
731266551504
oct6574401104
92302012855
10905052740
11424973579
12213125458
13115675487
14882b3a04
15546c8b95
hex35f20244

905052740 has 12 divisors (see below), whose sum is σ = 1900610796. Its totient is φ = 362021088.

The previous prime is 905052739. The next prime is 905052761. The reversal of 905052740 is 47250509.

It can be written as a sum of positive squares in 2 ways, for example, as 431642176 + 473410564 = 20776^2 + 21758^2 .

It is a junction number, because it is equal to n+sod(n) for n = 905052697 and 905052706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22626299 + ... + 22626338.

It is an arithmetic number, because the mean of its divisors is an integer number (158384233).

Almost surely, 2905052740 is an apocalyptic number.

It is an amenable number.

905052740 is an abundant number, since it is smaller than the sum of its proper divisors (995558056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

905052740 is a wasteful number, since it uses less digits than its factorization.

905052740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45252646 (or 45252644 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 905052740 is about 30084.0944686723. The cubic root of 905052740 is about 967.2928164196.

The spelling of 905052740 in words is "nine hundred five million, fifty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 45252637 90505274 181010548 226263185 452526370 905052740