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28458492190913 = 231511818878721
BaseRepresentation
bin1100111100010000000100…
…10100010110000011000001
310201202121100020210110001002
412132020002110112003001
512212230443000102123
6140305352325021345
75665025652246041
oct636100224260301
9121677306713032
1028458492190913
1190821a6a26414
123237543554855
1312b5816778885
147055811b9721
1534540d8a9528
hex19e2025160c1

28458492190913 has 8 divisors (see below), whose sum is σ = 29715471063936. Its totient is φ = 27203151078400.

The previous prime is 28458492190907. The next prime is 28458492191033. The reversal of 28458492190913 is 31909129485482.

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

It is a cyclic number.

It is not a de Polignac number, because 28458492190913 - 28 = 28458492190657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28458492190913.

It is not an unprimeable number, because it can be changed into a prime (28458492199913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409404608 + ... + 409474113.

It is an arithmetic number, because the mean of its divisors is an integer number (3714433882992).

Almost surely, 228458492190913 is an apocalyptic number.

28458492190913 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28458492190913 is a deficient number, since it is larger than the sum of its proper divisors (1256978873023).

28458492190913 is a wasteful number, since it uses less digits than its factorization.

28458492190913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818880255.

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 28458492190913 in words is "twenty-eight trillion, four hundred fifty-eight billion, four hundred ninety-two million, one hundred ninety thousand, nine hundred thirteen".

Divisors: 1 23 1511 34753 818878721 18834210583 1237325747431 28458492190913