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2154250135 = 51506128607
BaseRepresentation
bin1000000001100111…
…0011111110010111
312120010121020122001
42000121303332113
513402442001020
6553433020131
7104245552432
oct20031637627
95503536561
102154250135
11a06022014
12501554647
1328440392b
1416616c819
15c91d150a
hex80673f97

2154250135 has 8 divisors (see below), whose sum is σ = 2585362176. Its totient is φ = 1723225440.

The previous prime is 2154250117. The next prime is 2154250139. The reversal of 2154250135 is 5310524512.

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

It is not a de Polignac number, because 2154250135 - 25 = 2154250103 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 (2154250139) 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, 61002 + ... + 89608.

It is an arithmetic number, because the mean of its divisors is an integer number (323170272).

Almost surely, 22154250135 is an apocalyptic number.

2154250135 is a deficient number, since it is larger than the sum of its proper divisors (431112041).

2154250135 is a wasteful number, since it uses less digits than its factorization.

2154250135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43673.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2154250135 is about 46413.9002347357. The cubic root of 2154250135 is about 1291.5127846835.

Adding to 2154250135 its reverse (5310524512), we get a palindrome (7464774647).

The spelling of 2154250135 in words is "two billion, one hundred fifty-four million, two hundred fifty thousand, one hundred thirty-five".

Divisors: 1 5 15061 28607 75305 143035 430850027 2154250135