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1210331013 = 33717416263
BaseRepresentation
bin100100000100100…
…0010111110000101
310010100110012000120
41020021002332011
54434321043023
6320033332153
741664433563
oct11011027605
93110405016
101210331013
11571222671
12299407059
131639a08c8
14b6a5ca33
15713cb8e3
hex48242f85

1210331013 has 16 divisors (see below), whose sum is σ = 1658606976. Its totient is φ = 784503360.

The previous prime is 1210331011. The next prime is 1210331033. The reversal of 1210331013 is 3101330121.

It is not a de Polignac number, because 1210331013 - 21 = 1210331011 is a prime.

It is a super-2 number, since 2×12103310132 = 2929802322059212338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210330983 and 1210331001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210331011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190120 + ... + 196382.

It is an arithmetic number, because the mean of its divisors is an integer number (103662936).

Almost surely, 21210331013 is an apocalyptic number.

It is an amenable number.

1210331013 is a deficient number, since it is larger than the sum of its proper divisors (448275963).

1210331013 is a wasteful number, since it uses less digits than its factorization.

1210331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1210331013 is about 34789.8119138348. The cubic root of 1210331013 is about 1065.6993982083.

Adding to 1210331013 its reverse (3101330121), we get a palindrome (4311661134).

The spelling of 1210331013 in words is "one billion, two hundred ten million, three hundred thirty-one thousand, thirteen".

Divisors: 1 3 37 111 1741 5223 6263 18789 64417 193251 231731 695193 10903883 32711649 403443671 1210331013