Search a number
-
+
90080013 = 330026671
BaseRepresentation
bin1010101111010…
…00001100001101
320021111112112210
411113220030031
5141030030023
612534421033
72142444642
oct527501415
9207445483
1090080013
11469364a1
1226201779
131587c4aa
14bd6bdc9
157d95593
hex55e830d

90080013 has 4 divisors (see below), whose sum is σ = 120106688. Its totient is φ = 60053340.

The previous prime is 90079999. The next prime is 90080027. The reversal of 90080013 is 31008009.

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 an interprime number because it is at equal distance from previous prime (90079999) and next prime (90080027).

It is not a de Polignac number, because 90080013 - 224 = 73302797 is a prime.

It is a super-2 number, since 2×900800132 = 16228817484160338, 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 (90084013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15013333 + ... + 15013338.

It is an arithmetic number, because the mean of its divisors is an integer number (30026672).

Almost surely, 290080013 is an apocalyptic number.

It is an amenable number.

90080013 is a deficient number, since it is larger than the sum of its proper divisors (30026675).

90080013 is a wasteful number, since it uses less digits than its factorization.

90080013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30026674.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 90080013 is about 9491.0490990196. The cubic root of 90080013 is about 448.2732392594.

The spelling of 90080013 in words is "ninety million, eighty thousand, thirteen".

Divisors: 1 3 30026671 90080013