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1013402131 = 7144771733
BaseRepresentation
bin111100011001110…
…100101000010011
32121121220011101021
4330121310220103
54033412332011
6244320420311
734053530110
oct7431645023
92547804337
101013402131
11480048025
12243477697
13131c50441
1498839907
155de7c471
hex3c674a13

1013402131 has 4 divisors (see below), whose sum is σ = 1158173872. Its totient is φ = 868630392.

The previous prime is 1013402101. The next prime is 1013402153. The reversal of 1013402131 is 1312043101.

1013402131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1013402131 - 27 = 1013402003 is a prime.

It is a super-2 number, since 2×10134021312 = 2053967758230682322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013402101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72385860 + ... + 72385873.

It is an arithmetic number, because the mean of its divisors is an integer number (289543468).

Almost surely, 21013402131 is an apocalyptic number.

1013402131 is a deficient number, since it is larger than the sum of its proper divisors (144771741).

1013402131 is an equidigital number, since it uses as much as digits as its factorization.

1013402131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144771740.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1013402131 is about 31833.9776182619. The cubic root of 1013402131 is about 1004.4475668238.

Adding to 1013402131 its reverse (1312043101), we get a palindrome (2325445232).

The spelling of 1013402131 in words is "one billion, thirteen million, four hundred two thousand, one hundred thirty-one".

Divisors: 1 7 144771733 1013402131