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38905365895 = 5111741610017
BaseRepresentation
bin100100001110111100…
…001100010110000111
310201102101022100210121
4210032330030112013
51114134233202040
625512313002411
72545053103504
oct441674142607
9121371270717
1038905365895
1115555079260
1276593b3407
133890360086
141c510684ab
15102a860c4a
hex90ef0c587

38905365895 has 16 divisors (see below), whose sum is σ = 53926583328. Its totient is φ = 26630410240.

The previous prime is 38905365869. The next prime is 38905365907. The reversal of 38905365895 is 59856350983.

It is not a de Polignac number, because 38905365895 - 29 = 38905365383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20804074 + ... + 20805943.

It is an arithmetic number, because the mean of its divisors is an integer number (3370411458).

Almost surely, 238905365895 is an apocalyptic number.

38905365895 is a deficient number, since it is larger than the sum of its proper divisors (15021217433).

38905365895 is a wasteful number, since it uses less digits than its factorization.

38905365895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41610050.

The product of its (nonzero) digits is 34992000, while the sum is 61.

The spelling of 38905365895 in words is "thirty-eight billion, nine hundred five million, three hundred sixty-five thousand, eight hundred ninety-five".

Divisors: 1 5 11 17 55 85 187 935 41610017 208050085 457710187 707370289 2288550935 3536851445 7781073179 38905365895