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12834578998 = 27877814687
BaseRepresentation
bin10111111010000000…
…00010001000110110
31020010110112011111201
423331000002020312
5202241123011443
65521321323114
7633024056443
oct137500021066
936113464451
1012834578998
11549687018a
1225a233649a
131297033957
1489a7c89ca
15501b7834d
hex2fd002236

12834578998 has 8 divisors (see below), whose sum is σ = 19254336192. Its totient is φ = 6416466936.

The previous prime is 12834578993. The next prime is 12834579001. The reversal of 12834578998 is 89987543821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12834578993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391590 + ... + 423097.

It is an arithmetic number, because the mean of its divisors is an integer number (2406792024).

Almost surely, 212834578998 is an apocalyptic number.

12834578998 is a deficient number, since it is larger than the sum of its proper divisors (6419757194).

12834578998 is an equidigital number, since it uses as much as digits as its factorization.

12834578998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822566.

The product of its digits is 34836480, while the sum is 64.

The spelling of 12834578998 in words is "twelve billion, eight hundred thirty-four million, five hundred seventy-eight thousand, nine hundred ninety-eight".

Divisors: 1 2 7877 15754 814687 1629374 6417289499 12834578998