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69383328 = 2537223463
BaseRepresentation
bin1000010001010…
…11010010100000
311211120001000220
410020223102200
5120230231303
610515043040
71501514520
oct410532240
9154501026
1069383328
113618a7a3
121b2a0480
13114b3c31
149301680
156158053
hex422b4a0

69383328 has 96 divisors (see below), whose sum is σ = 209534976. Its totient is φ = 19692288.

The previous prime is 69383309. The next prime is 69383329. The reversal of 69383328 is 82338396.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 69383328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69383329) 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, 149625 + ... + 150087.

It is an arithmetic number, because the mean of its divisors is an integer number (2182656).

Almost surely, 269383328 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 69383328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104767488).

69383328 is an abundant number, since it is smaller than the sum of its proper divisors (140151648).

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

69383328 is a wasteful number, since it uses less digits than its factorization.

69383328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 698 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 69383328 is about 8329.6655395040. The cubic root of 69383328 is about 410.9147294404.

The spelling of 69383328 in words is "sixty-nine million, three hundred eighty-three thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 223 224 336 446 463 669 672 892 926 1338 1389 1561 1784 1852 2676 2778 3122 3241 3568 3704 4683 5352 5556 6244 6482 7136 7408 9366 9723 10704 11112 12488 12964 14816 18732 19446 21408 22224 24976 25928 37464 38892 44448 49952 51856 74928 77784 103249 103712 149856 155568 206498 309747 311136 412996 619494 722743 825992 1238988 1445486 1651984 2168229 2477976 2890972 3303968 4336458 4955952 5781944 8672916 9911904 11563888 17345832 23127776 34691664 69383328