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12872300 = 2252723771
BaseRepresentation
bin110001000110…
…101001101100
3220012222110212
4301012221230
511243403200
61135521552
7214261400
oct61065154
926188425
1012872300
1172a2171
1243892b8
13288905c
1419d1100
1511e4035
hexc46a6c

12872300 has 108 divisors (see below), whose sum is σ = 33841584. Its totient is φ = 4233600.

The previous prime is 12872287. The next prime is 12872303. The reversal of 12872300 is 327821.

It is a super-2 number, since 2×128723002 = 331392214580000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12872303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 181265 + ... + 181335.

It is an arithmetic number, because the mean of its divisors is an integer number (313348).

Almost surely, 212872300 is an apocalyptic number.

12872300 is a gapful number since it is divisible by the number (10) 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 12872300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16920792).

12872300 is an abundant number, since it is smaller than the sum of its proper divisors (20969284).

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

12872300 is a wasteful number, since it uses less digits than its factorization.

12872300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12872300 is about 3587.7987680471. The cubic root of 12872300 is about 234.3610225739.

It can be divided in two parts, 12 and 872300, that multiplied together give a triangular number (10467600 = T4575).

The spelling of 12872300 in words is "twelve million, eight hundred seventy-two thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 37 49 50 70 71 74 98 100 140 142 148 175 185 196 245 259 284 350 355 370 490 497 518 700 710 740 925 980 994 1036 1225 1295 1420 1775 1813 1850 1988 2450 2485 2590 2627 3479 3550 3626 3700 4900 4970 5180 5254 6475 6958 7100 7252 9065 9940 10508 12425 12950 13135 13916 17395 18130 18389 24850 25900 26270 34790 36260 36778 45325 49700 52540 65675 69580 73556 86975 90650 91945 128723 131350 173950 181300 183890 257446 262700 347900 367780 459725 514892 643615 919450 1287230 1838900 2574460 3218075 6436150 12872300