Search a number
-
+
1013134431 = 31726973849
BaseRepresentation
bin111100011000110…
…011010001011111
32121121101120011110
4330120303101133
54033330300211
6244310553103
734051333461
oct7430632137
92547346143
101013134431
1147a984991
12243368793
13131b8863a
14987aa131
155de27ea6
hex3c63345f

1013134431 has 16 divisors (see below), whose sum is σ = 1435644000. Its totient is φ = 633320448.

The previous prime is 1013134427. The next prime is 1013134433. The reversal of 1013134431 is 1344313101.

It is not a de Polignac number, because 1013134431 - 22 = 1013134427 is a prime.

It is a super-2 number, since 2×10131344312 = 2052882750555387522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1013134398 and 1013134407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013134433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23206 + ... + 50643.

It is an arithmetic number, because the mean of its divisors is an integer number (89727750).

Almost surely, 21013134431 is an apocalyptic number.

1013134431 is a deficient number, since it is larger than the sum of its proper divisors (422509569).

1013134431 is a wasteful number, since it uses less digits than its factorization.

1013134431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74138.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1013134431 is about 31829.7727136089. The cubic root of 1013134431 is about 1004.3591141798.

Adding to 1013134431 its reverse (1344313101), we get a palindrome (2357447532).

The spelling of 1013134431 in words is "one billion, thirteen million, one hundred thirty-four thousand, four hundred thirty-one".

Divisors: 1 3 17 51 269 807 4573 13719 73849 221547 1255433 3766299 19865381 59596143 337711477 1013134431