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8385137111 = 1329106120963
BaseRepresentation
bin1111100111100101…
…10000100111010111
3210122101010002200202
413303302300213113
5114133043341421
63504014331115
7414535326611
oct76362604727
923571102622
108385137111
11361321168a
1217601b9a9b
13a3827c5c0
145978bddb1
1534122510b
hex1f3cb09d7

8385137111 has 16 divisors (see below), whose sum is σ = 9350782560. Its totient is φ = 7465825920.

The previous prime is 8385137107. The next prime is 8385137113. The reversal of 8385137111 is 1117315838.

It is a cyclic number.

It is not a de Polignac number, because 8385137111 - 22 = 8385137107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8385137113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389516 + ... + 410478.

It is an arithmetic number, because the mean of its divisors is an integer number (584423910).

Almost surely, 28385137111 is an apocalyptic number.

8385137111 is a deficient number, since it is larger than the sum of its proper divisors (965645449).

8385137111 is a wasteful number, since it uses less digits than its factorization.

8385137111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22066.

The product of its digits is 20160, while the sum is 38.

The square root of 8385137111 is about 91570.3942931338. The cubic root of 8385137111 is about 2031.5930703899.

The spelling of 8385137111 in words is "eight billion, three hundred eighty-five million, one hundred thirty-seven thousand, one hundred eleven".

Divisors: 1 13 29 377 1061 13793 20963 30769 272519 399997 607927 7903051 22241743 289142659 645010547 8385137111