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38628054399 = 311361715679
BaseRepresentation
bin100011111110011010…
…010101010101111111
310200201001111110221110
4203332122111111333
51113102240220044
625425005133103
72535145021254
oct437632252577
9120631443843
1038628054399
1115422591000
1275a055a193
133847a7732c
141c262bd42b
1510113346b9
hex8fe69557f

38628054399 has 32 divisors (see below), whose sum is σ = 56746045440. Its totient is φ = 23371508160.

The previous prime is 38628054397. The next prime is 38628054431. The reversal of 38628054399 is 99345082683.

It is not a de Polignac number, because 38628054399 - 21 = 38628054397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38628054397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2455842 + ... + 2471520.

It is an arithmetic number, because the mean of its divisors is an integer number (1773313920).

Almost surely, 238628054399 is an apocalyptic number.

38628054399 is a deficient number, since it is larger than the sum of its proper divisors (18117991041).

38628054399 is a wasteful number, since it uses less digits than its factorization.

38628054399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16332 (or 16310 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 38628054399 in words is "thirty-eight billion, six hundred twenty-eight million, fifty-four thousand, three hundred ninety-nine".

Divisors: 1 3 11 33 121 363 617 1331 1851 3993 6787 15679 20361 47037 74657 172469 223971 517407 821227 1897159 2463681 5691477 9673943 20868749 29021829 62606247 106413373 319240119 1170547103 3511641309 12876018133 38628054399