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13070057 = 7112131187
BaseRepresentation
bin110001110110…
…111011101001
3220121000202012
4301312323221
511321220212
61144045305
7216044060
oct61667351
926530665
1013070057
117417800
124463835
132928080
141a431d7
151232922
hexc76ee9

13070057 has 24 divisors (see below), whose sum is σ = 17696448. Its totient is φ = 9393120.

The previous prime is 13070053. The next prime is 13070069. The reversal of 13070057 is 75007031.

It is a happy number.

It is not a de Polignac number, because 13070057 - 22 = 13070053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13070051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10418 + ... + 11604.

It is an arithmetic number, because the mean of its divisors is an integer number (737352).

Almost surely, 213070057 is an apocalyptic number.

It is an amenable number.

13070057 is a deficient number, since it is larger than the sum of its proper divisors (4626391).

13070057 is a wasteful number, since it uses less digits than its factorization.

13070057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 13070057 is about 3615.2533797785. The cubic root of 13070057 is about 235.5550903914. Note that the first 3 decimals are identical.

Adding to 13070057 its reverse (75007031), we get a palindrome (88077088).

The spelling of 13070057 in words is "thirteen million, seventy thousand, fifty-seven".

Divisors: 1 7 11 13 77 91 121 143 847 1001 1187 1573 8309 11011 13057 15431 91399 108017 143627 169741 1005389 1188187 1867151 13070057