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39000039 = 3131019901
BaseRepresentation
bin1001010011000…
…1011111100111
32201101101222220
42110301133213
534441000124
63511523423
7652331511
oct224613747
981341886
1039000039
1120018341
1211089573
138106660
145272bb1
153655879
hex25317e7

39000039 has 16 divisors (see below), whose sum is σ = 56560224. Its totient is φ = 23760000.

The previous prime is 39000037. The next prime is 39000053. The reversal of 39000039 is 93000093.

It is not a de Polignac number, because 39000039 - 21 = 39000037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38999982 and 39000018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39000037) 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, 1012 + ... + 8889.

It is an arithmetic number, because the mean of its divisors is an integer number (3535014).

Almost surely, 239000039 is an apocalyptic number.

39000039 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

39000039 is a deficient number, since it is larger than the sum of its proper divisors (17560185).

39000039 is a wasteful number, since it uses less digits than its factorization.

39000039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018.

The product of its (nonzero) digits is 729, while the sum is 24.

The square root of 39000039 is about 6245.0011208966. The cubic root of 39000039 is about 339.1212573418.

It can be divided in two parts, 390000 and 39, that multiplied together give a square (15210000 = 39002).

The spelling of 39000039 in words is "thirty-nine million, thirty-nine", and thus it is an aban number and an uban number.

Divisors: 1 3 13 39 101 303 1313 3939 9901 29703 128713 386139 1000001 3000003 13000013 39000039