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103312420309 = 7219910595059
BaseRepresentation
bin110000000110111100…
…1100110110111010101
3100212200000112201200101
41200031321212313111
53143040434422214
6115243331414101
710315115040400
oct1401571466725
9325600481611
10103312420309
113a8a619354a
1218033154331
139985b50167
145000d50d37
152a49e42774
hex180de66dd5

103312420309 has 12 divisors (see below), whose sum is σ = 120783684000. Its totient is φ = 88108502328.

The previous prime is 103312420307. The next prime is 103312420399. The reversal of 103312420309 is 903024213301.

It is not a de Polignac number, because 103312420309 - 21 = 103312420307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312420307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5287779 + ... + 5307280.

It is an arithmetic number, because the mean of its divisors is an integer number (10065307000).

Almost surely, 2103312420309 is an apocalyptic number.

It is an amenable number.

103312420309 is a deficient number, since it is larger than the sum of its proper divisors (17471263691).

103312420309 is a wasteful number, since it uses less digits than its factorization.

103312420309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10595272 (or 10595265 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 103312420309 in words is "one hundred three billion, three hundred twelve million, four hundred twenty thousand, three hundred nine".

Divisors: 1 7 49 199 1393 9751 10595059 74165413 519157891 2108416741 14758917187 103312420309