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249046272 = 2833137263
BaseRepresentation
bin11101101100000…
…10010100000000
3122100121212021000
432312002110000
51002223440042
640413532000
76112600266
oct1666022400
9570555230
10249046272
11118642172
126b4a4000
133c79a577
142510c436
1516ce674c
hexed82500

249046272 has 144 divisors (see below), whose sum is σ = 744670080. Its totient is φ = 82096128.

The previous prime is 249046271. The next prime is 249046283. The reversal of 249046272 is 272640942.

249046272 is a `hidden beast` number, since 24 + 9 + 0 + 4 + 627 + 2 = 666.

249046272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (249046271) 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, 946813 + ... + 947075.

It is an arithmetic number, because the mean of its divisors is an integer number (5171320).

Almost surely, 2249046272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249046272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372335040).

249046272 is an abundant number, since it is smaller than the sum of its proper divisors (495623808).

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

249046272 is a wasteful number, since it uses less digits than its factorization.

249046272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 249046272 is about 15781.1999543761. The cubic root of 249046272 is about 629.1584227760.

The spelling of 249046272 in words is "two hundred forty-nine million, forty-six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 137 144 192 216 256 263 274 288 384 411 432 526 548 576 768 789 822 864 1052 1096 1152 1233 1578 1644 1728 2104 2192 2304 2367 2466 3156 3288 3456 3699 4208 4384 4734 4932 6312 6576 6912 7101 7398 8416 8768 9468 9864 12624 13152 14202 14796 16832 17536 18936 19728 25248 26304 28404 29592 33664 35072 36031 37872 39456 50496 52608 56808 59184 67328 72062 75744 78912 100992 105216 108093 113616 118368 144124 151488 157824 201984 216186 227232 236736 288248 302976 315648 324279 432372 454464 473472 576496 605952 648558 864744 908928 946944 972837 1152992 1297116 1729488 1817856 1945674 2305984 2594232 3458976 3891348 4611968 5188464 6917952 7782696 9223936 10376928 13835904 15565392 20753856 27671808 31130784 41507712 62261568 83015424 124523136 249046272