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2438128654 = 213397236207
BaseRepresentation
bin1001000101010010…
…1110010000001110
320021220202202202021
42101110232100032
514443130104104
61041533320354
7114263515543
oct22124562016
96256682667
102438128654
111041295165
125806360ba
132cb1787a0
14191b46bca
15e40a8754
hex9152e40e

2438128654 has 16 divisors (see below), whose sum is σ = 3948452928. Its totient is φ = 1122450912.

The previous prime is 2438128633. The next prime is 2438128669. The reversal of 2438128654 is 4568218342.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2438128654.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 107782 + ... + 128425.

It is an arithmetic number, because the mean of its divisors is an integer number (246778308).

Almost surely, 22438128654 is an apocalyptic number.

2438128654 is a deficient number, since it is larger than the sum of its proper divisors (1510324274).

2438128654 is a wasteful number, since it uses less digits than its factorization.

2438128654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236619.

The product of its digits is 368640, while the sum is 43.

The square root of 2438128654 is about 49377.4103614193. The cubic root of 2438128654 is about 1345.9188414747.

It can be divided in two parts, 24381 and 28654, that added together give a palindrome (53035).

The spelling of 2438128654 in words is "two billion, four hundred thirty-eight million, one hundred twenty-eight thousand, six hundred fifty-four".

Divisors: 1 2 13 26 397 794 5161 10322 236207 472414 3070691 6141382 93774179 187548358 1219064327 2438128654