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252606080 = 2754367137
BaseRepresentation
bin11110000111001…
…11011010000000
3122121022201101202
433003213122000
51004131343310
641022120332
76155054606
oct1703473200
9577281352
10252606080
1111a653761
12707200a8
134044596c
1425797876
151729b3a5
hexf0e7680

252606080 has 128 divisors (see below), whose sum is σ = 631730880. Its totient is φ = 96509952.

The previous prime is 252606049. The next prime is 252606091. The reversal of 252606080 is 80606252.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 1843772 + ... + 1843908.

Almost surely, 2252606080 is an apocalyptic number.

252606080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252606080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315865440).

252606080 is an abundant number, since it is smaller than the sum of its proper divisors (379124800).

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

252606080 is a wasteful number, since it uses less digits than its factorization.

252606080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 252606080 is about 15893.5861277435. The cubic root of 252606080 is about 632.1419325516.

The spelling of 252606080 in words is "two hundred fifty-two million, six hundred six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 64 67 80 86 128 134 137 160 172 215 268 274 320 335 344 430 536 548 640 670 685 688 860 1072 1096 1340 1370 1376 1720 2144 2192 2680 2740 2752 2881 3440 4288 4384 5360 5480 5504 5762 5891 6880 8576 8768 9179 10720 10960 11524 11782 13760 14405 17536 18358 21440 21920 23048 23564 27520 28810 29455 36716 42880 43840 45895 46096 47128 57620 58910 73432 87680 91790 92192 94256 115240 117820 146864 183580 184384 188512 230480 235640 293728 367160 368768 377024 394697 460960 471280 587456 734320 754048 789394 921920 942560 1174912 1468640 1578788 1843840 1885120 1973485 2937280 3157576 3770240 3946970 5874560 6315152 7893940 12630304 15787880 25260608 31575760 50521216 63151520 126303040 252606080