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2154005354 = 21736225449
BaseRepresentation
bin1000000001100011…
…1000001101101010
312120010010210212002
42000120320031222
513402411132404
6553423451002
7104243512664
oct20030701552
95503123762
102154005354
11a05975116
12501456a62
132843493a7
14166107534
15c9183c1e
hex8063836a

2154005354 has 8 divisors (see below), whose sum is σ = 3249684900. Its totient is φ = 1070777056.

The previous prime is 2154005351. The next prime is 2154005369. The reversal of 2154005354 is 4535004512.

It can be written as a sum of positive squares in 2 ways, for example, as 2125671025 + 28334329 = 46105^2 + 5323^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2154005351) 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, 3112379 + ... + 3113070.

Almost surely, 22154005354 is an apocalyptic number.

2154005354 is a deficient number, since it is larger than the sum of its proper divisors (1095679546).

2154005354 is a wasteful number, since it uses less digits than its factorization.

2154005354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6225624.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2154005354 is about 46411.2632234892. The cubic root of 2154005354 is about 1291.4638659189.

Adding to 2154005354 its reverse (4535004512), we get a palindrome (6689009866).

The spelling of 2154005354 in words is "two billion, one hundred fifty-four million, five thousand, three hundred fifty-four".

Divisors: 1 2 173 346 6225449 12450898 1077002677 2154005354