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4138855 = 57118253
BaseRepresentation
bin1111110010011101100111
321210021102221
433302131213
52024420410
6224413211
750115430
oct17623547
97707387
104138855
112377646
121477207
13b1bb36
1479a487
1556b4da
hex3f2767

4138855 has 8 divisors (see below), whose sum is σ = 5676192. Its totient is φ = 2838048.

The previous prime is 4138853. The next prime is 4138861. The reversal of 4138855 is 5588314.

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 4138855 - 21 = 4138853 is a prime.

It is a super-2 number, since 2×41388552 = 34260241422050, which contains 22 as substring.

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 4138855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138853) 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, 59092 + ... + 59161.

It is an arithmetic number, because the mean of its divisors is an integer number (709524).

Almost surely, 24138855 is an apocalyptic number.

4138855 is a deficient number, since it is larger than the sum of its proper divisors (1537337).

4138855 is a wasteful number, since it uses less digits than its factorization.

4138855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118265.

The product of its digits is 19200, while the sum is 34.

The square root of 4138855 is about 2034.4176070807. The cubic root of 4138855 is about 160.5560729665.

The spelling of 4138855 in words is "four million, one hundred thirty-eight thousand, eight hundred fifty-five".

Divisors: 1 5 7 35 118253 591265 827771 4138855