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26419430317 = 797307912637
BaseRepresentation
bin11000100110101110…
…001000001110101101
32112012012211010011011
4120212232020032231
5413101333232232
620045324025221
71623461311120
oct304656101655
975165733134
1026419430317
1110228097035
125153992211
132650629007
1413c8ab63b7
15a49604547
hex626b883ad

26419430317 has 16 divisors (see below), whose sum is σ = 30517231360. Its totient is φ = 22402718208.

The previous prime is 26419430293. The next prime is 26419430321. The reversal of 26419430317 is 71303491462.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26419430317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26419430317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26419430377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2084323 + ... + 2096959.

It is an arithmetic number, because the mean of its divisors is an integer number (1907326960).

Almost surely, 226419430317 is an apocalyptic number.

It is an amenable number.

26419430317 is a deficient number, since it is larger than the sum of its proper divisors (4097801043).

26419430317 is a wasteful number, since it uses less digits than its factorization.

26419430317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15820.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 26419430317 in words is "twenty-six billion, four hundred nineteen million, four hundred thirty thousand, three hundred seventeen".

Divisors: 1 7 97 679 3079 12637 21553 88459 298663 1225789 2090641 8580523 38909323 272365261 3774204331 26419430317