Search a number
-
+
31302001230321 = 312895578091151
BaseRepresentation
bin1110001111000000100001…
…01010100000000111110001
311002211102221021201020121210
413013200100222200013301
513100322444303332241
6150323535120110333
76410331525265413
oct707402052400761
9132742837636553
1031302001230321
119a791167201a8
123616654a653a9
1314609c6021a33
147a304c6309b3
15394384756316
hex1c7810aa01f1

31302001230321 has 8 divisors (see below), whose sum is σ = 41736039163264. Its totient is φ = 20867982058800.

The previous prime is 31302001230307. The next prime is 31302001230341. The reversal of 31302001230321 is 12303210020313.

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

It is not a de Polignac number, because 31302001230321 - 211 = 31302001228273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31302001230341) 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, 176905 + ... + 7914246.

It is an arithmetic number, because the mean of its divisors is an integer number (5217004895408).

Almost surely, 231302001230321 is an apocalyptic number.

It is an amenable number.

31302001230321 is a deficient number, since it is larger than the sum of its proper divisors (10434037932943).

31302001230321 is a wasteful number, since it uses less digits than its factorization.

31302001230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380711.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31302001230321 its reverse (12303210020313), we get a palindrome (43605211250634).

The spelling of 31302001230321 in words is "thirty-one trillion, three hundred two billion, one million, two hundred thirty thousand, three hundred twenty-one".

Divisors: 1 3 1289557 3868671 8091151 24273453 10434000410107 31302001230321