Search a number
-
+
1013024431 = 7313877047
BaseRepresentation
bin111100011000011…
…000011010101111
32121121011222021101
4330120120122233
54033313240211
6244304343531
734050364666
oct7430303257
92547158241
101013024431
1147a90a281
12243314ba7
13131b4a553
149877bddd
155de055c1
hex3c6186af

1013024431 has 4 divisors (see below), whose sum is σ = 1026901552. Its totient is φ = 999147312.

The previous prime is 1013024413. The next prime is 1013024473. The reversal of 1013024431 is 1344203101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013024431 - 27 = 1013024303 is a prime.

It is a super-2 number, since 2×10130244312 = 2052436995605747522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013024399 and 1013024408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013024731) 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, 6938451 + ... + 6938596.

It is an arithmetic number, because the mean of its divisors is an integer number (256725388).

Almost surely, 21013024431 is an apocalyptic number.

1013024431 is a deficient number, since it is larger than the sum of its proper divisors (13877121).

1013024431 is an equidigital number, since it uses as much as digits as its factorization.

1013024431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13877120.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1013024431 is about 31828.0447247392. The cubic root of 1013024431 is about 1004.3227637878.

Adding to 1013024431 its reverse (1344203101), we get a palindrome (2357227532).

The spelling of 1013024431 in words is "one billion, thirteen million, twenty-four thousand, four hundred thirty-one".

Divisors: 1 73 13877047 1013024431