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78318014190 = 23513200815421
BaseRepresentation
bin100100011110000011…
…1100000111011101110
321111011010011100020020
41020330013200323232
52240343402423230
655551230503010
75441536064613
oct1107407407356
9244133140206
1078318014190
113023a528269
1213218664a66
137501824b40
143b0d62250a
1520859c7810
hex123c1e0eee

78318014190 has 32 divisors (see below), whose sum is σ = 202421945376. Its totient is φ = 19278280320.

The previous prime is 78318014167. The next prime is 78318014197. The reversal of 78318014190 is 9141081387.

It is a super-2 number, since 2×783180141902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78318014197) by changing a digit.

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, 100407321 + ... + 100408100.

It is an arithmetic number, because the mean of its divisors is an integer number (6325685793).

Almost surely, 278318014190 is an apocalyptic number.

78318014190 is an abundant number, since it is smaller than the sum of its proper divisors (124103931186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78318014190 is a wasteful number, since it uses less digits than its factorization.

78318014190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200815444.

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 78318014190 in words is "seventy-eight billion, three hundred eighteen million, fourteen thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 200815421 401630842 602446263 1004077105 1204892526 2008154210 2610600473 3012231315 5221200946 6024462630 7831801419 13053002365 15663602838 26106004730 39159007095 78318014190