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13619869149 = 343105580381
BaseRepresentation
bin11001010111100111…
…01011010111011101
31022011012012001002010
430223303223113131
5210343141303044
610131253021433
7661340656215
oct145363532735
938135161063
1013619869149
11585a074307
122781324879
131390936293
14932c05245
1554aa96bb9
hex32bceb5dd

13619869149 has 8 divisors (see below), whose sum is σ = 18582147232. Its totient is φ = 8868751920.

The previous prime is 13619869097. The next prime is 13619869157. The reversal of 13619869149 is 94196891631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13619869149 - 29 = 13619868637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13619869049) 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, 52790062 + ... + 52790319.

It is an arithmetic number, because the mean of its divisors is an integer number (2322768404).

Almost surely, 213619869149 is an apocalyptic number.

It is an amenable number.

13619869149 is a deficient number, since it is larger than the sum of its proper divisors (4962278083).

13619869149 is a wasteful number, since it uses less digits than its factorization.

13619869149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105580427.

The product of its digits is 2519424, while the sum is 57.

The spelling of 13619869149 in words is "thirteen billion, six hundred nineteen million, eight hundred sixty-nine thousand, one hundred forty-nine".

Divisors: 1 3 43 129 105580381 316741143 4539956383 13619869149