Search a number
-
+
1220607241 = 7457381559
BaseRepresentation
bin100100011000000…
…1111110100001001
310011001210021100121
41020300033310021
54444433412431
6321041503241
742150663460
oct11060176411
93131707317
101220607241
11577001317
122a0941b21
13165b5b109
14b81759d7
157225b611
hex48c0fd09

1220607241 has 8 divisors (see below), whose sum is σ = 1398035840. Its totient is φ = 1043942688.

The previous prime is 1220607229. The next prime is 1220607247. The reversal of 1220607241 is 1427060221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220607241 - 213 = 1220599049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220607247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187581 + ... + 193978.

It is an arithmetic number, because the mean of its divisors is an integer number (174754480).

Almost surely, 21220607241 is an apocalyptic number.

It is an amenable number.

1220607241 is a deficient number, since it is larger than the sum of its proper divisors (177428599).

1220607241 is an equidigital number, since it uses as much as digits as its factorization.

1220607241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382023.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1220607241 is about 34937.1899413791. The cubic root of 1220607241 is about 1068.7069835473.

Adding to 1220607241 its reverse (1427060221), we get a palindrome (2647667462).

The spelling of 1220607241 in words is "one billion, two hundred twenty million, six hundred seven thousand, two hundred forty-one".

Divisors: 1 7 457 3199 381559 2670913 174372463 1220607241