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12701290 = 2574232
BaseRepresentation
bin110000011100…
…111001101010
3212220021220011
4300130321222
511222420130
61132122134
7212650000
oct60347152
925807804
1012701290
117195738
12430634a
132829274
141988a70
1511ad52a
hexc1ce6a

12701290 has 60 divisors (see below), whose sum is σ = 27881154. Its totient is φ = 4165392.

The previous prime is 12701287. The next prime is 12701317. The reversal of 12701290 is 9210721.

12701290 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11431161 + 1270129 = 3381^2 + 1127^2 .

It is a super-2 number, since 2×127012902 = 322645535328200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

12701290 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 552219 + ... + 552241.

Almost surely, 212701290 is an apocalyptic number.

12701290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12701290 is an abundant number, since it is smaller than the sum of its proper divisors (15179864).

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

12701290 is an frugal number, since it uses more digits than its factorization.

12701290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 12701290 is about 3563.8869230098. The cubic root of 12701290 is about 233.3185546195.

The spelling of 12701290 in words is "twelve million, seven hundred one thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 23 35 46 49 70 98 115 161 230 245 322 343 490 529 686 805 1058 1127 1610 1715 2254 2401 2645 3430 3703 4802 5290 5635 7406 7889 11270 12005 15778 18515 24010 25921 37030 39445 51842 55223 78890 110446 129605 181447 259210 276115 362894 552230 907235 1270129 1814470 2540258 6350645 12701290