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12980272 = 244147421
BaseRepresentation
bin110001100001…
…000000110000
3220102110120211
4301201000300
511310332042
61142113504
7215221234
oct61410060
926373524
1012980272
1173662a8
12441b894
1328c6246
141a1c5c4
151216017
hexc61030

12980272 has 40 divisors (see below), whose sum is σ = 26373312. Its totient is φ = 6182400.

The previous prime is 12980269. The next prime is 12980273. The reversal of 12980272 is 27208921.

It is a super-2 number, since 2×129802722 = 336974922387968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12980273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30622 + ... + 31042.

Almost surely, 212980272 is an apocalyptic number.

It is an amenable number.

12980272 is an abundant number, since it is smaller than the sum of its proper divisors (13393040).

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

12980272 is a wasteful number, since it uses less digits than its factorization.

12980272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12980272 is about 3602.8144553946. The cubic root of 12980272 is about 235.0144671945.

The spelling of 12980272 in words is "twelve million, nine hundred eighty thousand, two hundred seventy-two".

Divisors: 1 2 4 8 16 41 47 82 94 164 188 328 376 421 656 752 842 1684 1927 3368 3854 6736 7708 15416 17261 19787 30832 34522 39574 69044 79148 138088 158296 276176 316592 811267 1622534 3245068 6490136 12980272