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13912573 is a prime number
BaseRepresentation
bin110101000100…
…100111111101
3222011211110111
4311010213331
512030200243
61214110021
7226153303
oct65044775
928154414
1013912573
1179427a4
1247ab311
132b616bc
141bc2273
15134c39d
hexd449fd

13912573 has 2 divisors, whose sum is σ = 13912574. Its totient is φ = 13912572.

The previous prime is 13912531. The next prime is 13912597. The reversal of 13912573 is 37521931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 822649 = 3618^2 + 907^2 .

It is an emirp because it is prime and its reverse (37521931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13912573 - 29 = 13912061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13912523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6956286 + 6956287.

It is an arithmetic number, because the mean of its divisors is an integer number (6956287).

Almost surely, 213912573 is an apocalyptic number.

It is an amenable number.

13912573 is a deficient number, since it is larger than the sum of its proper divisors (1).

13912573 is an equidigital number, since it uses as much as digits as its factorization.

13912573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 13912573 is about 3729.9561659623. The cubic root of 13912573 is about 240.5114843893.

The spelling of 13912573 in words is "thirteen million, nine hundred twelve thousand, five hundred seventy-three".