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252684768 = 2537253717
BaseRepresentation
bin11110000111110…
…10100111100000
3122121110201100010
433003322213200
51004141403033
641023524520
76155533200
oct1703724740
9577421303
10252684768
1111a6a7896
1270759740
134047271b
14257b8400
15172b4863
hexf0fa9e0

252684768 has 72 divisors (see below), whose sum is σ = 771605352. Its totient is φ = 72194304.

The previous prime is 252684767. The next prime is 252684769. The reversal of 252684768 is 867486252.

It is an interprime number because it is at equal distance from previous prime (252684767) and next prime (252684769).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252684767) 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, 22155 + ... + 31562.

It is an arithmetic number, because the mean of its divisors is an integer number (10716741).

Almost surely, 2252684768 is an apocalyptic number.

252684768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

252684768 is an abundant number, since it is smaller than the sum of its proper divisors (518920584).

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

252684768 is a wasteful number, since it uses less digits than its factorization.

252684768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53744 (or 53729 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 252684768 is about 15896.0613989755. The cubic root of 252684768 is about 632.2075641473.

The spelling of 252684768 in words is "two hundred fifty-two million, six hundred eighty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 84 96 98 112 147 168 196 224 294 336 392 588 672 784 1176 1568 2352 4704 53717 107434 161151 214868 322302 376019 429736 644604 752038 859472 1128057 1289208 1504076 1718944 2256114 2578416 2632133 3008152 4512228 5156832 5264266 6016304 7896399 9024456 10528532 12032608 15792798 18048912 21057064 31585596 36097824 42114128 63171192 84228256 126342384 252684768