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4025870393 = 29138823117
BaseRepresentation
bin1110111111110101…
…1110100000111001
3101101120101101221212
43233331132200321
531221110323033
61503252212505
7201523222316
oct35775364071
911346341855
104025870393
111786554016
1294430a135
134c20abb3c
142a2969d0d
15188685748
hexeff5e839

4025870393 has 4 divisors (see below), whose sum is σ = 4164693540. Its totient is φ = 3887047248.

The previous prime is 4025870293. The next prime is 4025870437. The reversal of 4025870393 is 3930785204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2493304489 + 1532565904 = 49933^2 + 39148^2 .

It is not a de Polignac number, because 4025870393 - 226 = 3958761529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4025870393.

It is not an unprimeable number, because it can be changed into a prime (4025870293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69411530 + ... + 69411587.

It is an arithmetic number, because the mean of its divisors is an integer number (1041173385).

Almost surely, 24025870393 is an apocalyptic number.

It is an amenable number.

4025870393 is a deficient number, since it is larger than the sum of its proper divisors (138823147).

4025870393 is a wasteful number, since it uses less digits than its factorization.

4025870393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138823146.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 4025870393 is about 63449.7469892513. The cubic root of 4025870393 is about 1590.8159245956.

The spelling of 4025870393 in words is "four billion, twenty-five million, eight hundred seventy thousand, three hundred ninety-three".

Divisors: 1 29 138823117 4025870393