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20410149 = 317400199
BaseRepresentation
bin100110111011…
…0111100100101
31102101221110110
41031312330211
520211111044
62005243233
7335324544
oct115667445
942357413
1020410149
11105804a1
126a03519
1342c8016
1429d415b
151bd26b9
hex1376f25

20410149 has 8 divisors (see below), whose sum is σ = 28814400. Its totient is φ = 12806336.

The previous prime is 20410139. The next prime is 20410163. The reversal of 20410149 is 94101402.

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 20410149 - 213 = 20401957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410109) 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, 200049 + ... + 200150.

It is an arithmetic number, because the mean of its divisors is an integer number (3601800).

Almost surely, 220410149 is an apocalyptic number.

It is an amenable number.

20410149 is a deficient number, since it is larger than the sum of its proper divisors (8404251).

20410149 is a wasteful number, since it uses less digits than its factorization.

20410149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400219.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20410149 is about 4517.7592897365. The cubic root of 20410149 is about 273.2847463046.

The spelling of 20410149 in words is "twenty million, four hundred ten thousand, one hundred forty-nine".

Divisors: 1 3 17 51 400199 1200597 6803383 20410149