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252254688 = 25373112109
BaseRepresentation
bin11110000100100…
…01100111100000
3122120122212101020
433002101213200
51004034122223
641010405440
76152062260
oct1702214740
9576585336
10252254688
1111a433754
1270590880
1340351a3a
14257057a0
151722c1e3
hexf0919e0

252254688 has 96 divisors (see below), whose sum is σ = 781240320. Its totient is φ = 69742080.

The previous prime is 252254633. The next prime is 252254689. The reversal of 252254688 is 886452252.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (252254689) 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, 14778 + ... + 26886.

It is an arithmetic number, because the mean of its divisors is an integer number (8137920).

Almost surely, 2252254688 is an apocalyptic number.

252254688 is a gapful number since it is divisible by the number (28) 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 252254688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390620160).

252254688 is an abundant number, since it is smaller than the sum of its proper divisors (528985632).

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

252254688 is a wasteful number, since it uses less digits than its factorization.

252254688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12160 (or 12152 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 252254688 is about 15882.5277585150. The cubic root of 252254688 is about 631.8486792556.

The spelling of 252254688 in words is "two hundred fifty-two million, two hundred fifty-four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 32 42 48 56 62 84 93 96 112 124 168 186 217 224 248 336 372 434 496 651 672 744 868 992 1302 1488 1736 2604 2976 3472 5208 6944 10416 12109 20832 24218 36327 48436 72654 84763 96872 145308 169526 193744 254289 290616 339052 375379 387488 508578 581232 678104 750758 1017156 1126137 1162464 1356208 1501516 2034312 2252274 2627653 2712416 3003032 4068624 4504548 5255306 6006064 7882959 8137248 9009096 10510612 12012128 15765918 18018192 21021224 31531836 36036384 42042448 63063672 84084896 126127344 252254688