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12733480 = 235318337
BaseRepresentation
bin110000100100…
…110000101000
3212221221001101
4300210300220
511224432410
61132531144
7213142564
oct60446050
925857041
1012733480
117207941
124320ab4
13283ab06
1419966a4
1511b7d3a
hexc24c28

12733480 has 16 divisors (see below), whose sum is σ = 28650420. Its totient is φ = 5093376.

The previous prime is 12733453. The next prime is 12733499. The reversal of 12733480 is 8433721.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 996004 = 3426^2 + 998^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159129 + ... + 159208.

Almost surely, 212733480 is an apocalyptic number.

12733480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12733480 is an abundant number, since it is smaller than the sum of its proper divisors (15916940).

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

12733480 is a wasteful number, since it uses less digits than its factorization.

12733480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318348 (or 318344 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 12733480 is about 3568.4002017711. The cubic root of 12733480 is about 233.5154949390.

It can be divided in two parts, 1273 and 3480, that added together give a triangular number (4753 = T97).

The spelling of 12733480 in words is "twelve million, seven hundred thirty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 318337 636674 1273348 1591685 2546696 3183370 6366740 12733480