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78052531003 = 4715710577657
BaseRepresentation
bin100100010110001001…
…0110001101100111011
321110110121121101202121
41020230102301230323
52234322421443003
655505024342111
75432133365266
oct1105422615473
9243417541677
1078052531003
1130113689877
1213163774937
13748b820bb5
143ac6275cdd
15206c535cbd
hex122c4b1b3b

78052531003 has 8 divisors (see below), whose sum is σ = 80220958272. Its totient is φ = 75905259456.

The previous prime is 78052530971. The next prime is 78052531013. The reversal of 78052531003 is 30013525087.

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 78052531003 - 25 = 78052530971 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 78052531003.

It is not an unprimeable number, because it can be changed into a prime (78052531013) 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, 5281450 + ... + 5296207.

It is an arithmetic number, because the mean of its divisors is an integer number (10027619784).

Almost surely, 278052531003 is an apocalyptic number.

78052531003 is a deficient number, since it is larger than the sum of its proper divisors (2168427269).

78052531003 is a wasteful number, since it uses less digits than its factorization.

78052531003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10577861.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 78052531003 in words is "seventy-eight billion, fifty-two million, five hundred thirty-one thousand, three".

Divisors: 1 47 157 7379 10577657 497149879 1660692149 78052531003