Search a number
-
+
1031301013 = 2394315067
BaseRepresentation
bin111101011110000…
…110011110010101
32122212120112000211
4331132012132111
54103003113023
6250200205421
734361625331
oct7536063625
92585515024
101031301013
1148a162796
12249469871
131358793b2
149ad787c1
1560815a0d
hex3d786795

1031301013 has 4 divisors (see below), whose sum is σ = 1035616320. Its totient is φ = 1026985708.

The previous prime is 1031300969. The next prime is 1031301017. The reversal of 1031301013 is 3101031301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1031301013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031300984 and 1031301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031301017) 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, 2157295 + ... + 2157772.

It is an arithmetic number, because the mean of its divisors is an integer number (258904080).

Almost surely, 21031301013 is an apocalyptic number.

It is an amenable number.

1031301013 is a deficient number, since it is larger than the sum of its proper divisors (4315307).

1031301013 is an equidigital number, since it uses as much as digits as its factorization.

1031301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315306.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1031301013 is about 32113.8757081733. The cubic root of 1031301013 is about 1010.3266639336.

Adding to 1031301013 its reverse (3101031301), we get a palindrome (4132332314).

The spelling of 1031301013 in words is "one billion, thirty-one million, three hundred one thousand, thirteen".

Divisors: 1 239 4315067 1031301013