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12480004305 = 3251255322093
BaseRepresentation
bin10111001111101110…
…11100000011010001
31012012202022220110200
423213313130003101
5201024340114210
65422213445413
7621160200126
oct134767340321
935182286420
1012480004305
115324700a4a
122503640869
13123b738442
1486568a74d
154d09890c0
hex2e7ddc0d1

12480004305 has 24 divisors (see below), whose sum is σ = 21634709928. Its totient is φ = 6655170816.

The previous prime is 12480004301. The next prime is 12480004319. The reversal of 12480004305 is 50340008421.

It can be written as a sum of positive squares in 4 ways, for example, as 8041246929 + 4438757376 = 89673^2 + 66624^2 .

It is not a de Polignac number, because 12480004305 - 22 = 12480004301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12480004301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 553839 + ... + 575931.

It is an arithmetic number, because the mean of its divisors is an integer number (901446247).

Almost surely, 212480004305 is an apocalyptic number.

12480004305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12480004305 is a deficient number, since it is larger than the sum of its proper divisors (9154705623).

12480004305 is a wasteful number, since it uses less digits than its factorization.

12480004305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34657 (or 34654 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 12480004305 in words is "twelve billion, four hundred eighty million, four thousand, three hundred five".

Divisors: 1 3 5 9 15 45 12553 22093 37659 62765 66279 110465 112977 188295 198837 331395 564885 994185 277333429 832000287 1386667145 2496000861 4160001435 12480004305