Search a number
-
+
4121407 = 15726251
BaseRepresentation
bin1111101110001100111111
321202101111201
433232030333
52023341112
6224200331
750013523
oct17561477
97671451
104121407
112365524
1214690a7
13b13c04
14793d83
15566257
hex3ee33f

4121407 has 4 divisors (see below), whose sum is σ = 4147816. Its totient is φ = 4095000.

The previous prime is 4121401. The next prime is 4121413. The reversal of 4121407 is 7041214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7041214 = 23520607.

It is an interprime number because it is at equal distance from previous prime (4121401) and next prime (4121413).

It is a cyclic number.

It is not a de Polignac number, because 4121407 - 211 = 4119359 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 (4121401) 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, 12969 + ... + 13282.

It is an arithmetic number, because the mean of its divisors is an integer number (1036954).

Almost surely, 24121407 is an apocalyptic number.

4121407 is a deficient number, since it is larger than the sum of its proper divisors (26409).

4121407 is a wasteful number, since it uses less digits than its factorization.

4121407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26408.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 4121407 is about 2030.1248730066. The cubic root of 4121407 is about 160.3301386469.

The spelling of 4121407 in words is "four million, one hundred twenty-one thousand, four hundred seven".

Divisors: 1 157 26251 4121407