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1107042031 = 2801395231
BaseRepresentation
bin100000111111100…
…0001111011101111
32212011002120011201
41001333001323233
54231400321111
6301503430331
736301462534
oct10177017357
92764076151
101107042031
11518995077
1226a8b53a7
13148478074
14a7052d8b
15672c76c1
hex41fc1eef

1107042031 has 4 divisors (see below), whose sum is σ = 1107440064. Its totient is φ = 1106644000.

The previous prime is 1107042019. The next prime is 1107042037. The reversal of 1107042031 is 1302407011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1107042031 is a prime.

It is a super-2 number, since 2×11070420312 = 2451084116801209922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107042037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 194815 + ... + 200416.

It is an arithmetic number, because the mean of its divisors is an integer number (276860016).

Almost surely, 21107042031 is an apocalyptic number.

1107042031 is a deficient number, since it is larger than the sum of its proper divisors (398033).

1107042031 is an equidigital number, since it uses as much as digits as its factorization.

1107042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398032.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1107042031 is about 33272.2411478397. The cubic root of 1107042031 is about 1034.4782642724.

Adding to 1107042031 its reverse (1302407011), we get a palindrome (2409449042).

The spelling of 1107042031 in words is "one billion, one hundred seven million, forty-two thousand, thirty-one".

Divisors: 1 2801 395231 1107042031