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2151345451 = 3529609619
BaseRepresentation
bin1000000000111010…
…1110110100101011
312112221010200011011
42000032232310223
513401221023301
6553250444351
7104212064113
oct20016566453
95487120134
102151345451
11a04418752
125005936b7
13283927798
14165a14043
15c8d0aa51
hex803aed2b

2151345451 has 4 divisors (see below), whose sum is σ = 2151958600. Its totient is φ = 2150732304.

The previous prime is 2151345437. The next prime is 2151345467. The reversal of 2151345451 is 1545431512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2151345451 - 213 = 2151337259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151345421) 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, 301281 + ... + 308338.

It is an arithmetic number, because the mean of its divisors is an integer number (537989650).

Almost surely, 22151345451 is an apocalyptic number.

2151345451 is a deficient number, since it is larger than the sum of its proper divisors (613149).

2151345451 is an equidigital number, since it uses as much as digits as its factorization.

2151345451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613148.

The product of its digits is 12000, while the sum is 31.

The square root of 2151345451 is about 46382.5985796398. The cubic root of 2151345451 is about 1290.9320530082.

Adding to 2151345451 its reverse (1545431512), we get a palindrome (3696776963).

The spelling of 2151345451 in words is "two billion, one hundred fifty-one million, three hundred forty-five thousand, four hundred fifty-one".

Divisors: 1 3529 609619 2151345451