Search a number
-
+
1310233321 = 31139304069
BaseRepresentation
bin100111000011000…
…1001001011101001
310101022102202020001
41032012021023221
510140404431241
6334002503001
744316541135
oct11606111351
93338382201
101310233321
11612657761
12306964a61
1317b5abab7
14c60263c5
157a062431
hex4e1892e9

1310233321 has 8 divisors (see below), whose sum is σ = 1362233600. Its totient is φ = 1258841520.

The previous prime is 1310233289. The next prime is 1310233363. The reversal of 1310233321 is 1233320131.

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 1310233321 - 25 = 1310233289 is a prime.

It is a super-2 number, since 2×13102333212 = 3433422710917378082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310233621) 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, 147726 + ... + 156343.

It is an arithmetic number, because the mean of its divisors is an integer number (170279200).

Almost surely, 21310233321 is an apocalyptic number.

It is an amenable number.

1310233321 is a deficient number, since it is larger than the sum of its proper divisors (52000279).

1310233321 is a wasteful number, since it uses less digits than its factorization.

1310233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304239.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1310233321 is about 36197.1452051125. The cubic root of 1310233321 is about 1094.2491383590.

Adding to 1310233321 its reverse (1233320131), we get a palindrome (2543553452).

The spelling of 1310233321 in words is "one billion, three hundred ten million, two hundred thirty-three thousand, three hundred twenty-one".

Divisors: 1 31 139 4309 304069 9426139 42265591 1310233321