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105034432031 = 156767028993
BaseRepresentation
bin110000111010010001…
…0100011111000011111
3101001010000210222200022
41201310202203320133
53210102303311111
6120130244222355
710405564640624
oct1416442437037
9331100728608
10105034432031
11405aa220431
121843399a9bb
139b9b8356c9
14512592634b
152aeb1e32db
hex18748a3e1f

105034432031 has 4 divisors (see below), whose sum is σ = 105101462592. Its totient is φ = 104967401472.

The previous prime is 105034432007. The next prime is 105034432033. The reversal of 105034432031 is 130234430501.

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-105034432031 is a prime.

It is a super-2 number, since 2×1050344320312 (a number of 23 digits) 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 (105034432033) 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, 33512930 + ... + 33516063.

It is an arithmetic number, because the mean of its divisors is an integer number (26275365648).

Almost surely, 2105034432031 is an apocalyptic number.

105034432031 is a deficient number, since it is larger than the sum of its proper divisors (67030561).

105034432031 is an equidigital number, since it uses as much as digits as its factorization.

105034432031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67030560.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 105034432031 its reverse (130234430501), we get a palindrome (235268862532).

The spelling of 105034432031 in words is "one hundred five billion, thirty-four million, four hundred thirty-two thousand, thirty-one".

Divisors: 1 1567 67028993 105034432031