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252937216 = 21072712
BaseRepresentation
bin11110001001110…
…00010000000000
3122121221112122001
433010320100000
51004222442331
641033153344
76160634200
oct1704702000
9577845561
10252937216
1111a85a524
127085b854
13405305bc
1425842400
1517314561
hexf138400

252937216 has 99 divisors (see below), whose sum is σ = 596579727. Its totient is φ = 106874880.

The previous prime is 252937211. The next prime is 252937219. The reversal of 252937216 is 612739252.

The square root of 252937216 is 15904.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (45360) is a multiple of the sum of its prime divisors (80).

It is not an unprimeable number, because it can be changed into a prime (252937211) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3562461 + ... + 3562531.

Almost surely, 2252937216 is an apocalyptic number.

252937216 is the 15904-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252937216

252937216 is an abundant number, since it is smaller than the sum of its proper divisors (343642511).

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

252937216 is an frugal number, since it uses more digits than its factorization.

252937216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 80 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The cubic root of 252937216 is about 632.4180324657.

The spelling of 252937216 in words is "two hundred fifty-two million, nine hundred thirty-seven thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 71 98 112 128 142 196 224 256 284 392 448 497 512 568 784 896 994 1024 1136 1568 1792 1988 2272 3136 3479 3584 3976 4544 5041 6272 6958 7168 7952 9088 10082 12544 13916 15904 18176 20164 25088 27832 31808 35287 36352 40328 50176 55664 63616 70574 72704 80656 111328 127232 141148 161312 222656 247009 254464 282296 322624 445312 494018 508928 564592 645248 890624 988036 1129184 1290496 1781248 1976072 2258368 2580992 3562496 3952144 4516736 5161984 7904288 9033472 15808576 18066944 31617152 36133888 63234304 126468608 252937216