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872144308 = 227196172657
BaseRepresentation
bin110011111110111…
…101110110110100
32020210002112002001
4303332331312310
53241232104213
6222313025044
730420050530
oct6376756664
92223075061
10872144308
11408336a22
122040b5184
1310b8c2729
1483b88bc0
15518781dd
hex33fbddb4

872144308 has 48 divisors (see below), whose sum is σ = 1839761280. Its totient is φ = 353396736.

The previous prime is 872144281. The next prime is 872144323. The reversal of 872144308 is 803441278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326916 + ... + 329572.

It is an arithmetic number, because the mean of its divisors is an integer number (38328360).

Almost surely, 2872144308 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 872144308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919880640).

872144308 is an abundant number, since it is smaller than the sum of its proper divisors (967616972).

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

872144308 is a wasteful number, since it uses less digits than its factorization.

872144308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304 (or 3302 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 872144308 is about 29532.0894621427. The cubic root of 872144308 is about 955.4239350250.

The spelling of 872144308 in words is "eight hundred seventy-two million, one hundred forty-four thousand, three hundred eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 617 1234 2468 2657 4319 5314 8638 10628 11723 17276 18599 23446 37198 46892 50483 74396 82061 100966 164122 201932 328244 353381 706762 1413524 1639369 3278738 6557476 11475583 22951166 31148011 45902332 62296022 124592044 218036077 436072154 872144308