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39008061 = 3673733
BaseRepresentation
bin1001010011001…
…1011100111101
32201101211000000
42110303130331
534441224221
63512024513
7652364061
oct224633475
981354000
1039008061
1120023374
1211092139
13810a1c1
145275aa1
153657e26
hex253373d

39008061 has 28 divisors (see below), whose sum is σ = 59367388. Its totient is φ = 25614144.

The previous prime is 39008041. The next prime is 39008071. The reversal of 39008061 is 16080093.

It can be written as a sum of positive squares in 2 ways, for example, as 32148900 + 6859161 = 5670^2 + 2619^2 .

It is not a de Polignac number, because 39008061 - 219 = 38483773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39008041) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 52851 + ... + 53583.

Almost surely, 239008061 is an apocalyptic number.

It is an amenable number.

39008061 is a deficient number, since it is larger than the sum of its proper divisors (20359327).

39008061 is an frugal number, since it uses more digits than its factorization.

39008061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 39008061 is about 6245.6433615761. The cubic root of 39008061 is about 339.1445072691.

The spelling of 39008061 in words is "thirty-nine million, eight thousand, sixty-one".

Divisors: 1 3 9 27 73 81 219 243 657 729 733 1971 2199 5913 6597 17739 19791 53217 53509 59373 160527 178119 481581 534357 1444743 4334229 13002687 39008061