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12873250 = 2531317233
BaseRepresentation
bin110001000110…
…111000100010
3220020000210001
4301012320202
511243421000
61135530214
7214264225
oct61067042
926200701
1012873250
1172a2955
12438996a
132889610
1419d15bc
1511e446a
hexc46e22

12873250 has 64 divisors (see below), whose sum is σ = 27597024. Its totient is φ = 4454400.

The previous prime is 12873229. The next prime is 12873271. The reversal of 12873250 is 5237821.

It is an interprime number because it is at equal distance from previous prime (12873229) and next prime (12873271).

It can be written as a sum of positive squares in 16 ways, for example, as 2134521 + 10738729 = 1461^2 + 3277^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55134 + ... + 55366.

Almost surely, 212873250 is an apocalyptic number.

12873250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12873250 is an abundant number, since it is smaller than the sum of its proper divisors (14723774).

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

12873250 is a wasteful number, since it uses less digits than its factorization.

12873250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 12873250 is about 3587.9311587599. The cubic root of 12873250 is about 234.3667878604.

The spelling of 12873250 in words is "twelve million, eight hundred seventy-three thousand, two hundred fifty".

Divisors: 1 2 5 10 13 17 25 26 34 50 65 85 125 130 170 221 233 250 325 425 442 466 650 850 1105 1165 1625 2125 2210 2330 3029 3250 3961 4250 5525 5825 6058 7922 11050 11650 15145 19805 27625 29125 30290 39610 51493 55250 58250 75725 99025 102986 151450 198050 257465 378625 495125 514930 757250 990250 1287325 2574650 6436625 12873250