Search a number
-
+
1210304056 = 231371163909
BaseRepresentation
bin100100000100011…
…1100011000111000
310010100101211001011
41020020330120320
54434314212211
6320033003304
741664262153
oct11010743070
93110354034
101210304056
11571204395
122993b3534
13163991560
14b6a52c9a
15713c3921
hex4823c638

1210304056 has 32 divisors (see below), whose sum is σ = 2478319200. Its totient is φ = 550730880.

The previous prime is 1210304033. The next prime is 1210304057. The reversal of 1210304056 is 6504030121.

It is a super-2 number, since 2×12103040562 = 2929671815940102272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210304057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74571 + ... + 89338.

It is an arithmetic number, because the mean of its divisors is an integer number (77447475).

Almost surely, 21210304056 is an apocalyptic number.

It is an amenable number.

1210304056 is an abundant number, since it is smaller than the sum of its proper divisors (1268015144).

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

1210304056 is a wasteful number, since it uses less digits than its factorization.

1210304056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163999 (or 163995 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1210304056 is about 34789.4244850357. The cubic root of 1210304056 is about 1065.6914862483.

Adding to 1210304056 its reverse (6504030121), we get a palindrome (7714334177).

The spelling of 1210304056 in words is "one billion, two hundred ten million, three hundred four thousand, fifty-six".

Divisors: 1 2 4 8 13 26 52 71 104 142 284 568 923 1846 3692 7384 163909 327818 655636 1311272 2130817 4261634 8523268 11637539 17046536 23275078 46550156 93100312 151288007 302576014 605152028 1210304056