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1331101206 = 232433894421
BaseRepresentation
bin100111101010110…
…1111111000010110
310102202200221120200
41033111233320112
510211230214311
6340030041330
744662113351
oct11725577026
93382627520
101331101206
11623410046
12311949246
13182a07266
14c8ad9298
157bcd5556
hex4f56fe16

1331101206 has 48 divisors (see below), whose sum is σ = 2959379280. Its totient is φ = 432169920.

The previous prime is 1331101181. The next prime is 1331101217. The reversal of 1331101206 is 6021011331.

It is a super-2 number, since 2×13311012062 = 3543660841229308872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298876 + ... + 303296.

It is an arithmetic number, because the mean of its divisors is an integer number (61653735).

Almost surely, 21331101206 is an apocalyptic number.

1331101206 is an abundant number, since it is smaller than the sum of its proper divisors (1628278074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331101206 is a wasteful number, since it uses less digits than its factorization.

1331101206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861 (or 4858 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1331101206 is about 36484.2597019591. The cubic root of 1331101206 is about 1100.0278797341.

Adding to 1331101206 its reverse (6021011331), we get a palindrome (7352112537).

The spelling of 1331101206 in words is "one billion, three hundred thirty-one million, one hundred one thousand, two hundred six".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 389 774 778 1167 2334 3501 4421 7002 8842 13263 16727 26526 33454 39789 50181 79578 100362 150543 190103 301086 380206 570309 1140618 1710927 1719769 3421854 3439538 5159307 10318614 15477921 30955842 73950067 147900134 221850201 443700402 665550603 1331101206