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13881077 = 719104369
BaseRepresentation
bin110100111100…
…111011110101
3222010020020222
4310330323311
512023143302
61213304125
7225662420
oct64747365
928106228
1013881077
117921071
124795045
132b50272
141bb49b7
151342da2
hexd3cef5

13881077 has 8 divisors (see below), whose sum is σ = 16699200. Its totient is φ = 11271744.

The previous prime is 13881067. The next prime is 13881079. The reversal of 13881077 is 77018831.

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 13881077 - 26 = 13881013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881079) 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, 52052 + ... + 52317.

It is an arithmetic number, because the mean of its divisors is an integer number (2087400).

Almost surely, 213881077 is an apocalyptic number.

It is an amenable number.

13881077 is a deficient number, since it is larger than the sum of its proper divisors (2818123).

13881077 is a wasteful number, since it uses less digits than its factorization.

13881077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104395.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 13881077 is about 3725.7317402089. The cubic root of 13881077 is about 240.3298531590.

The spelling of 13881077 in words is "thirteen million, eight hundred eighty-one thousand, seventy-seven".

Divisors: 1 7 19 133 104369 730583 1983011 13881077