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20134151 = 157257499
BaseRepresentation
bin100110011001…
…1100100000111
31101212220212022
41030303210013
520123243101
61555313355
7333065102
oct114634407
941786768
1020134151
11104020a4
1268ab85b
13422c4cb
142961739
151b7aa1b
hex1333907

20134151 has 8 divisors (see below), whose sum is σ = 20382000. Its totient is φ = 19888128.

The previous prime is 20134139. The next prime is 20134183. The reversal of 20134151 is 15143102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20134151 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 (20134111) 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, 40100 + ... + 40598.

It is an arithmetic number, because the mean of its divisors is an integer number (2547750).

Almost surely, 220134151 is an apocalyptic number.

20134151 is a deficient number, since it is larger than the sum of its proper divisors (247849).

20134151 is a wasteful number, since it uses less digits than its factorization.

20134151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20134151 is about 4487.1094258999. The cubic root of 20134151 is about 272.0473128121.

Adding to 20134151 its reverse (15143102), we get a palindrome (35277253).

The spelling of 20134151 in words is "twenty million, one hundred thirty-four thousand, one hundred fifty-one".

Divisors: 1 157 257 499 40349 78343 128243 20134151