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252954144 = 2533192811
BaseRepresentation
bin11110001001111…
…00011000100000
3122121222101212000
433010330120200
51004224013034
641033404000
76161034432
oct1704743040
9577871760
10252954144
1111a871213
1270869600
1340538211
1425848652
1517319599
hexf13c620

252954144 has 144 divisors (see below), whose sum is σ = 779617440. Its totient is φ = 79781760.

The previous prime is 252954113. The next prime is 252954227. The reversal of 252954144 is 441459252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 252954099 and 252954108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311499 + ... + 312309.

It is an arithmetic number, because the mean of its divisors is an integer number (5414010).

Almost surely, 2252954144 is an apocalyptic number.

252954144 is a gapful number since it is divisible by the number (24) 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 252954144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389808720).

252954144 is an abundant number, since it is smaller than the sum of its proper divisors (526663296).

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

252954144 is a wasteful number, since it uses less digits than its factorization.

252954144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 835 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 252954144 is about 15904.5321842549. The cubic root of 252954144 is about 632.4321404907.

The spelling of 252954144 in words is "two hundred fifty-two million, nine hundred fifty-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 72 76 96 108 114 144 152 171 216 228 288 304 342 361 432 456 513 608 684 722 811 864 912 1026 1083 1368 1444 1622 1824 2052 2166 2433 2736 2888 3244 3249 4104 4332 4866 5472 5776 6488 6498 7299 8208 8664 9732 9747 11552 12976 12996 14598 15409 16416 17328 19464 19494 21897 25952 25992 29196 30818 34656 38928 38988 43794 46227 51984 58392 61636 77856 77976 87588 92454 103968 116784 123272 138681 155952 175176 184908 233568 246544 277362 292771 311904 350352 369816 416043 493088 554724 585542 700704 739632 832086 878313 1109448 1171084 1479264 1664172 1756626 2218896 2342168 2634939 3328344 3513252 4437792 4684336 5269878 6656688 7026504 7904817 9368672 10539756 13313376 14053008 15809634 21079512 28106016 31619268 42159024 63238536 84318048 126477072 252954144