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39028872 = 233173331
BaseRepresentation
bin1001010011100…
…0100010001000
32201102212112210
42110320202020
534442410442
63512305120
7652511541
oct224704210
981385483
1039028872
1120037a73
12110a21a0
13811680c
14527d4c8
15365e19c
hex2538888

39028872 has 64 divisors (see below), whose sum is σ = 103982400. Its totient is φ = 12207360.

The previous prime is 39028859. The next prime is 39028877. The reversal of 39028872 is 27882093.

It is a self number, because there is not a number n which added to its sum of digits gives 39028872.

It is not an unprimeable number, because it can be changed into a prime (39028877) 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, 117747 + ... + 118077.

It is an arithmetic number, because the mean of its divisors is an integer number (1624725).

Almost surely, 239028872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39028872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51991200).

39028872 is an abundant number, since it is smaller than the sum of its proper divisors (64953528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39028872 is a wasteful number, since it uses less digits than its factorization.

39028872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 39028872 is about 6247.3091807593. The cubic root of 39028872 is about 339.2048083230.

The spelling of 39028872 in words is "thirty-nine million, twenty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 289 331 408 578 662 867 993 1156 1324 1734 1986 2312 2648 3468 3972 4913 5627 6936 7944 9826 11254 14739 16881 19652 22508 29478 33762 39304 45016 58956 67524 95659 117912 135048 191318 286977 382636 573954 765272 1147908 1626203 2295816 3252406 4878609 6504812 9757218 13009624 19514436 39028872