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39245070 = 23519312221
BaseRepresentation
bin1001010110110…
…1010100001110
32201211212010010
42111231110032
540021320240
63521054050
7654402054
oct225552416
981755103
1039245070
1120175447
1211187326
138191047
1452d81d4
1536a3280
hex256d50e

39245070 has 64 divisors (see below), whose sum is σ = 102389760. Its totient is φ = 9590400.

The previous prime is 39245053. The next prime is 39245099. The reversal of 39245070 is 7054293.

39245070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16560 + ... + 18780.

It is an arithmetic number, because the mean of its divisors is an integer number (1599840).

Almost surely, 239245070 is an apocalyptic number.

39245070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39245070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51194880).

39245070 is an abundant number, since it is smaller than the sum of its proper divisors (63144690).

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

39245070 is a wasteful number, since it uses less digits than its factorization.

39245070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 39245070 is about 6264.5885738810. The cubic root of 39245070 is about 339.8299899753.

The spelling of 39245070 in words is "thirty-nine million, two hundred forty-five thousand, seventy".

Divisors: 1 2 3 5 6 10 15 19 30 31 38 57 62 93 95 114 155 186 190 285 310 465 570 589 930 1178 1767 2221 2945 3534 4442 5890 6663 8835 11105 13326 17670 22210 33315 42199 66630 68851 84398 126597 137702 206553 210995 253194 344255 413106 421990 632985 688510 1032765 1265970 1308169 2065530 2616338 3924507 6540845 7849014 13081690 19622535 39245070