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1081030033 = 4723000639
BaseRepresentation
bin100000001101111…
…0011010110010001
32210100011000102101
41000123303112101
54203220430113
6255134120401
735534414026
oct10033632621
92710130371
101081030033
11505238956
12262050101
13142c6b355
14a380154d
1564d8a2dd
hex406f3591

1081030033 has 4 divisors (see below), whose sum is σ = 1104030720. Its totient is φ = 1058029348.

The previous prime is 1081030021. The next prime is 1081030039. The reversal of 1081030033 is 3300301801.

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-1081030033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1081030039) 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, 11500273 + ... + 11500366.

It is an arithmetic number, because the mean of its divisors is an integer number (276007680).

Almost surely, 21081030033 is an apocalyptic number.

It is an amenable number.

1081030033 is a deficient number, since it is larger than the sum of its proper divisors (23000687).

1081030033 is an equidigital number, since it uses as much as digits as its factorization.

1081030033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23000686.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1081030033 is about 32879.0211685202. The cubic root of 1081030033 is about 1026.3116368955.

Adding to 1081030033 its reverse (3300301801), we get a palindrome (4381331834).

The spelling of 1081030033 in words is "one billion, eighty-one million, thirty thousand, thirty-three".

Divisors: 1 47 23000639 1081030033