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13971077 = 191193379
BaseRepresentation
bin110101010010…
…111010000101
3222021210201022
4311102322011
512034033302
61215240525
7226516001
oct65227205
928253638
1013971077
11798274a
124819145
132b82213
141bd9701
15135e8a2
hexd52e85

13971077 has 8 divisors (see below), whose sum is σ = 14154240. Its totient is φ = 13789440.

The previous prime is 13971073. The next prime is 13971101. The reversal of 13971077 is 77017931.

It is a happy number.

13971077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13971077 - 22 = 13971073 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 (13971073) 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, 36674 + ... + 37052.

It is an arithmetic number, because the mean of its divisors is an integer number (1769280).

Almost surely, 213971077 is an apocalyptic number.

It is an amenable number.

13971077 is a deficient number, since it is larger than the sum of its proper divisors (183163).

13971077 is a wasteful number, since it uses less digits than its factorization.

13971077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763.

The product of its (nonzero) digits is 9261, while the sum is 35.

The square root of 13971077 is about 3737.7903900567. The cubic root of 13971077 is about 240.8481392647.

The spelling of 13971077 in words is "thirteen million, nine hundred seventy-one thousand, seventy-seven".

Divisors: 1 191 193 379 36863 72389 73147 13971077