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1420033031 = 3793746789
BaseRepresentation
bin101010010100011…
…1111110000000111
310122222001011002222
41110220333300013
510402012024111
6352524122555
750122036664
oct12450776007
93588034088
101420033031
1166963191a
1233769645b
13198273c41
14d6848a6b
1584a007db
hex54a3fc07

1420033031 has 4 divisors (see below), whose sum is σ = 1423780200. Its totient is φ = 1416285864.

The previous prime is 1420033009. The next prime is 1420033049. The reversal of 1420033031 is 1303300241.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1420033031 is a prime.

It is a super-2 number, since 2×14200330312 = 4032987618262093922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420033061) 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, 1873016 + ... + 1873773.

It is an arithmetic number, because the mean of its divisors is an integer number (355945050).

Almost surely, 21420033031 is an apocalyptic number.

1420033031 is a deficient number, since it is larger than the sum of its proper divisors (3747169).

1420033031 is an equidigital number, since it uses as much as digits as its factorization.

1420033031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747168.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1420033031 is about 37683.3256361484. The cubic root of 1420033031 is about 1123.9995796974. Note that the first 3 decimals are identical.

Adding to 1420033031 its reverse (1303300241), we get a palindrome (2723333272).

The spelling of 1420033031 in words is "one billion, four hundred twenty million, thirty-three thousand, thirty-one".

Divisors: 1 379 3746789 1420033031