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939989141 = 71392911119
BaseRepresentation
bin111000000001110…
…001100010010101
32102111202101200122
4320001301202111
53411114123031
6233135121325
732202530060
oct7001614225
92374671618
10939989141
11442665833
12222973245
1311c9882c0
148cba98d7
15577ca47b
hex38071895

939989141 has 16 divisors (see below), whose sum is σ = 1158259200. Its totient is φ = 742860288.

The previous prime is 939989129. The next prime is 939989189. The reversal of 939989141 is 141989939.

It is a cyclic number.

It is not a de Polignac number, because 939989141 - 214 = 939972757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939989101) 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, 78980 + ... + 90098.

It is an arithmetic number, because the mean of its divisors is an integer number (72391200).

Almost surely, 2939989141 is an apocalyptic number.

939989141 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

939989141 is a deficient number, since it is larger than the sum of its proper divisors (218270059).

939989141 is a wasteful number, since it uses less digits than its factorization.

939989141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12068.

The product of its digits is 629856, while the sum is 53.

The square root of 939989141 is about 30659.2423422367. The cubic root of 939989141 is about 979.5823365998.

The spelling of 939989141 in words is "nine hundred thirty-nine million, nine hundred eighty-nine thousand, one hundred forty-one".

Divisors: 1 7 13 91 929 6503 11119 12077 77833 84539 144547 1011829 10329551 72306857 134284163 939989141