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39675040 = 2551931421
BaseRepresentation
bin1001011101011…
…0010010100000
32202122200220221
42113112102200
540124100130
63534212424
7661142446
oct227262240
982580827
1039675040
1120439499
1211354114
1382b1972
1453aab96
15373a87a
hex25d64a0

39675040 has 96 divisors (see below), whose sum is σ = 102090240. Its totient is φ = 14515200.

The previous prime is 39675011. The next prime is 39675049. The reversal of 39675040 is 4057693.

It is a junction number, because it is equal to n+sod(n) for n = 39674987 and 39675005.

It is not an unprimeable number, because it can be changed into a prime (39675049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94030 + ... + 94450.

It is an arithmetic number, because the mean of its divisors is an integer number (1063440).

Almost surely, 239675040 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 39675040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51045120).

39675040 is an abundant number, since it is smaller than the sum of its proper divisors (62415200).

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

39675040 is a wasteful number, since it uses less digits than its factorization.

39675040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 39675040 is about 6298.8125865118. The cubic root of 39675040 is about 341.0665470408.

The spelling of 39675040 in words is "thirty-nine million, six hundred seventy-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 19 20 31 32 38 40 62 76 80 95 124 152 155 160 190 248 304 310 380 421 496 589 608 620 760 842 992 1178 1240 1520 1684 2105 2356 2480 2945 3040 3368 4210 4712 4960 5890 6736 7999 8420 9424 11780 13051 13472 15998 16840 18848 23560 26102 31996 33680 39995 47120 52204 63992 65255 67360 79990 94240 104408 127984 130510 159980 208816 247969 255968 261020 319960 417632 495938 522040 639920 991876 1044080 1239845 1279840 1983752 2088160 2479690 3967504 4959380 7935008 9918760 19837520 39675040