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1040016031 = 1823570497
BaseRepresentation
bin111101111111010…
…110001010011111
32200110222021210021
4331333112022133
54112221003111
6251111053011
734525663465
oct7577261237
92613867707
101040016031
1149407548a
12250371167
1313760b102
149c1a6835
1561487d71
hex3dfd629f

1040016031 has 4 divisors (see below), whose sum is σ = 1040588352. Its totient is φ = 1039443712.

The previous prime is 1040016011. The next prime is 1040016041. The reversal of 1040016031 is 1306100401.

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 1040016031 - 27 = 1040015903 is a prime.

It is a super-2 number, since 2×10400160312 = 2163266689473985922, 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 = 1040015996 and 1040016014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040016011) 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, 283426 + ... + 287071.

It is an arithmetic number, because the mean of its divisors is an integer number (260147088).

Almost surely, 21040016031 is an apocalyptic number.

1040016031 is a deficient number, since it is larger than the sum of its proper divisors (572321).

1040016031 is an equidigital number, since it uses as much as digits as its factorization.

1040016031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572320.

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

The square root of 1040016031 is about 32249.2795423402. The cubic root of 1040016031 is about 1013.1646095493.

Adding to 1040016031 its reverse (1306100401), we get a palindrome (2346116432).

The spelling of 1040016031 in words is "one billion, forty million, sixteen thousand, thirty-one".

Divisors: 1 1823 570497 1040016031