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4008072 = 2332353137
BaseRepresentation
bin1111010010100010001000
321112122001010
433102202020
52011224242
6221523520
746032225
oct17224210
97478033
104008072
112298362
1214135a0
13aa4453
1476494c
1554289c
hex3d2888

4008072 has 64 divisors (see below), whose sum is σ = 10730880. Its totient is φ = 1244672.

The previous prime is 4008029. The next prime is 4008077. The reversal of 4008072 is 2708004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4008077) 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, 29188 + ... + 29324.

It is an arithmetic number, because the mean of its divisors is an integer number (167670).

Almost surely, 24008072 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 4008072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5365440).

4008072 is an abundant number, since it is smaller than the sum of its proper divisors (6722808).

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

4008072 is a wasteful number, since it uses less digits than its factorization.

4008072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 4008072 is about 2002.0169829449. The cubic root of 4008072 is about 158.8468126279.

The spelling of 4008072 in words is "four million, eight thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 53 69 92 106 137 138 159 184 212 274 276 318 411 424 548 552 636 822 1096 1219 1272 1644 2438 3151 3288 3657 4876 6302 7261 7314 9453 9752 12604 14522 14628 18906 21783 25208 29044 29256 37812 43566 58088 75624 87132 167003 174264 334006 501009 668012 1002018 1336024 2004036 4008072