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13209280141 = 311113138281
BaseRepresentation
bin11000100110101010…
…11001111010001101
31021002120120221211211
430103111121322031
5204023033431031
610022424414421
7645224012551
oct142325317215
937076527754
1013209280141
115669326752
122687917411
131326857cc5
148d4485861
155249e0bb1
hex313559e8d

13209280141 has 8 divisors (see below), whose sum is σ = 13636967168. Its totient is φ = 12781692000.

The previous prime is 13209280087. The next prime is 13209280157. The reversal of 13209280141 is 14108290231.

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 13209280141 - 223 = 13200891533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13209280741) 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, 325921 + ... + 364201.

It is an arithmetic number, because the mean of its divisors is an integer number (1704620896).

Almost surely, 213209280141 is an apocalyptic number.

It is an amenable number.

13209280141 is a deficient number, since it is larger than the sum of its proper divisors (427687027).

13209280141 is a wasteful number, since it uses less digits than its factorization.

13209280141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49443.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 13209280141 in words is "thirteen billion, two hundred nine million, two hundred eighty thousand, one hundred forty-one".

Divisors: 1 31 11131 38281 345061 1186711 426105811 13209280141