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71426500015 = 5132857138461
BaseRepresentation
bin100001010000101011…
…0011110010110101111
320211100211120011000111
41002201112132112233
52132240141000030
652451325440451
75106005142553
oct1024126362657
9224324504014
1071426500015
1128323440702
1211a14710127
136973b43cc0
143658265863
151cd098c62a
hex10a159e5af

71426500015 has 16 divisors (see below), whose sum is σ = 92310646176. Its totient is φ = 52742505600.

The previous prime is 71426499973. The next prime is 71426500097. The reversal of 71426500015 is 51000562417.

It is not a de Polignac number, because 71426500015 - 27 = 71426499887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71426500015.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1837885 + ... + 1876345.

It is an arithmetic number, because the mean of its divisors is an integer number (5769415386).

Almost surely, 271426500015 is an apocalyptic number.

71426500015 is a deficient number, since it is larger than the sum of its proper divisors (20884146161).

71426500015 is a wasteful number, since it uses less digits than its factorization.

71426500015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67050.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 71426500015 in words is "seventy-one billion, four hundred twenty-six million, five hundred thousand, fifteen".

Divisors: 1 5 13 65 28571 38461 142855 192305 371423 499993 1857115 2499965 1098869231 5494346155 14285300003 71426500015