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252593280 = 2732543853
BaseRepresentation
bin11110000111001…
…00010010000000
3122121022001211200
433003210102000
51004130441110
641021541200
76155002362
oct1703442200
9577261750
10252593280
1111a645085
1270714800
134043cba4
1425792d32
15172976c0
hexf0e4480

252593280 has 96 divisors (see below), whose sum is σ = 872256060. Its totient is φ = 67356672.

The previous prime is 252593279. The next prime is 252593281. The reversal of 252593280 is 82395252.

It is an interprime number because it is at equal distance from previous prime (252593279) and next prime (252593281).

It can be written as a sum of positive squares in 2 ways, for example, as 233722944 + 18870336 = 15288^2 + 4344^2 .

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 (36).

It is not an unprimeable number, because it can be changed into a prime (252593281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16167 + ... + 27686.

Almost surely, 2252593280 is an apocalyptic number.

252593280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252593280 is an abundant number, since it is smaller than the sum of its proper divisors (619662780).

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

252593280 is a wasteful number, since it uses less digits than its factorization.

252593280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43878 (or 43863 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 252593280 is about 15893.1834444834. The cubic root of 252593280 is about 632.1312551187.

The spelling of 252593280 in words is "two hundred fifty-two million, five hundred ninety-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 43853 87706 131559 175412 219265 263118 350824 394677 438530 526236 657795 701648 789354 877060 1052472 1315590 1403296 1578708 1754120 1973385 2104944 2631180 2806592 3157416 3508240 3946770 4209888 5262360 5613184 6314832 7016480 7893540 8419776 10524720 12629664 14032960 15787080 16839552 21049440 25259328 28065920 31574160 42098880 50518656 63148320 84197760 126296640 252593280