Search a number
-
+
561895348 = 227215831811
BaseRepresentation
bin100001011111011…
…101011110110100
31110011022020111211
4201133131132310
52122321122343
6131431211204
716632013600
oct4137353664
91404266454
10561895348
112691a2323
12138216b04
138c546971
14548a8500
15344e279d
hex217dd7b4

561895348 has 36 divisors (see below), whose sum is σ = 1145212992. Its totient is φ = 240527280.

The previous prime is 561895343. The next prime is 561895351. The reversal of 561895348 is 843598165.

It is a super-2 number, since 2×5618953482 = 631452764208082208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561895343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309363 + ... + 311173.

It is an arithmetic number, because the mean of its divisors is an integer number (31811472).

Almost surely, 2561895348 is an apocalyptic number.

It is an amenable number.

561895348 is an abundant number, since it is smaller than the sum of its proper divisors (583317644).

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

561895348 is a wasteful number, since it uses less digits than its factorization.

561895348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412 (or 3403 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 561895348 is about 23704.3318404042. The cubic root of 561895348 is about 825.1859258949.

The spelling of 561895348 in words is "five hundred sixty-one million, eight hundred ninety-five thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 1583 1811 3166 3622 6332 7244 11081 12677 22162 25354 44324 50708 77567 88739 155134 177478 310268 354956 2866813 5733626 11467252 20067691 40135382 80270764 140473837 280947674 561895348