Search a number
-
+
1330072237 = 13214347743
BaseRepresentation
bin100111101000111…
…0100101010101101
310102200202200002201
41033101310222231
510210444302422
6335552021501
744650266424
oct11721645255
93380680081
101330072237
11622877a5a
12311531891
13182736ac0
14c890c2bb
157bb80727
hex4f474aad

1330072237 has 8 divisors (see below), whose sum is σ = 1433083904. Its totient is φ = 1227160368.

The previous prime is 1330072217. The next prime is 1330072241. The reversal of 1330072237 is 7322700331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1330072237 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 (1330072217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988 + ... + 51730.

It is an arithmetic number, because the mean of its divisors is an integer number (179135488).

Almost surely, 21330072237 is an apocalyptic number.

It is an amenable number.

1330072237 is a deficient number, since it is larger than the sum of its proper divisors (103011667).

1330072237 is a wasteful number, since it uses less digits than its factorization.

1330072237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49899.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 1330072237 is about 36470.1554287886. The cubic root of 1330072237 is about 1099.7443584995.

Adding to 1330072237 its reverse (7322700331), we get a palindrome (8652772568).

The spelling of 1330072237 in words is "one billion, three hundred thirty million, seventy-two thousand, two hundred thirty-seven".

Divisors: 1 13 2143 27859 47743 620659 102313249 1330072237