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24895139 = 313732153
BaseRepresentation
bin101111011110…
…1111010100011
31201211210201012
41132331322203
522333121024
62245331135
7421414403
oct136757243
951753635
1024895139
11130640a5
128406aab
135208569
143440803
1522bb50e
hex17bdea3

24895139 has 8 divisors (see below), whose sum is σ = 25779072. Its totient is φ = 24016320.

The previous prime is 24895133. The next prime is 24895163. The reversal of 24895139 is 93159842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-24895139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24895096 and 24895105.

It is not an unprimeable number, because it can be changed into a prime (24895133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10487 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (3222384).

Almost surely, 224895139 is an apocalyptic number.

24895139 is a deficient number, since it is larger than the sum of its proper divisors (883933).

24895139 is a wasteful number, since it uses less digits than its factorization.

24895139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557.

The product of its digits is 77760, while the sum is 41.

The square root of 24895139 is about 4989.5028810494. The cubic root of 24895139 is about 291.9923803291.

The spelling of 24895139 in words is "twenty-four million, eight hundred ninety-five thousand, one hundred thirty-nine".

Divisors: 1 31 373 2153 11563 66743 803069 24895139