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630243200 = 2752375323
BaseRepresentation
bin100101100100001…
…011111110000000
31121220220200010202
4211210023332000
52242320240300
6142312144332
721421656506
oct4544137600
91556820122
10630243200
112a3835054
121570980a8
13a0757492
145d9ba676
153a4e3ad5
hex2590bf80

630243200 has 96 divisors (see below), whose sum is σ = 1599276360. Its totient is φ = 245237760.

The previous prime is 630243199. The next prime is 630243203. The reversal of 630243200 is 2342036.

It is a super-3 number, since 3×6302432003 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630243203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115739 + ... + 121061.

Almost surely, 2630243200 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 630243200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799638180).

630243200 is an abundant number, since it is smaller than the sum of its proper divisors (969033160).

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

630243200 is a wasteful number, since it uses less digits than its factorization.

630243200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5384 (or 5367 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 630243200 is about 25104.6449885275. The cubic root of 630243200 is about 857.3721841412.

Adding to 630243200 its reverse (2342036), we get a palindrome (632585236).

The spelling of 630243200 in words is "six hundred thirty million, two hundred forty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 37 40 50 64 74 80 100 128 148 160 185 200 296 320 370 400 592 640 740 800 925 1184 1480 1600 1850 2368 2960 3200 3700 4736 5323 5920 7400 10646 11840 14800 21292 23680 26615 29600 42584 53230 59200 85168 106460 118400 133075 170336 196951 212920 266150 340672 393902 425840 532300 681344 787804 851680 984755 1064600 1575608 1703360 1969510 2129200 3151216 3406720 3939020 4258400 4923775 6302432 7878040 8516800 9847550 12604864 15756080 17033600 19695100 25209728 31512160 39390200 63024320 78780400 126048640 157560800 315121600 630243200