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12914280 = 23325291237
BaseRepresentation
bin110001010000…
…111001101000
3220022010001200
4301100321220
511301224110
61140444200
7214524651
oct61207150
926263050
1012914280
117320765
1243a9660
1328a21b2
141a02528
1512016c0
hexc50e68

12914280 has 96 divisors (see below), whose sum is σ = 43453800. Its totient is φ = 3322368.

The previous prime is 12914273. The next prime is 12914311. The reversal of 12914280 is 8241921.

It can be written as a sum of positive squares in 4 ways, for example, as 11655396 + 1258884 = 3414^2 + 1122^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9822 + ... + 11058.

Almost surely, 212914280 is an apocalyptic number.

12914280 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 12914280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21726900).

12914280 is an abundant number, since it is smaller than the sum of its proper divisors (30539520).

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

12914280 is a wasteful number, since it uses less digits than its factorization.

12914280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 12914280 is about 3593.6443897526. The cubic root of 12914280 is about 234.6155173615.

The spelling of 12914280 in words is "twelve million, nine hundred fourteen thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 29 30 36 40 45 58 60 72 87 90 116 120 145 174 180 232 261 290 348 360 435 522 580 696 870 1044 1160 1237 1305 1740 2088 2474 2610 3480 3711 4948 5220 6185 7422 9896 10440 11133 12370 14844 18555 22266 24740 29688 35873 37110 44532 49480 55665 71746 74220 89064 107619 111330 143492 148440 179365 215238 222660 286984 322857 358730 430476 445320 538095 645714 717460 860952 1076190 1291428 1434920 1614285 2152380 2582856 3228570 4304760 6457140 12914280