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2053212251 = 3783668581
BaseRepresentation
bin111101001100001…
…1000100001011011
312022002110222201012
41322120120201123
513201110243001
6535423244135
7101611005356
oct17230304133
95262428635
102053212251
11963a91832
1249374964b
132694b88bc
1415698b29d
15c03c42bb
hex7a61885b

2053212251 has 8 divisors (see below), whose sum is σ = 2134113744. Its totient is φ = 1973648160.

The previous prime is 2053212241. The next prime is 2053212307. The reversal of 2053212251 is 1522123502.

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-2053212251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2053212241) 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, 331220 + ... + 337361.

It is an arithmetic number, because the mean of its divisors is an integer number (266764218).

Almost surely, 22053212251 is an apocalyptic number.

2053212251 is a deficient number, since it is larger than the sum of its proper divisors (80901493).

2053212251 is an equidigital number, since it uses as much as digits as its factorization.

2053212251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668701.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2053212251 is about 45312.3851833028. The cubic root of 2053212251 is about 1270.9972638991.

Adding to 2053212251 its reverse (1522123502), we get a palindrome (3575335753).

The spelling of 2053212251 in words is "two billion, fifty-three million, two hundred twelve thousand, two hundred fifty-one".

Divisors: 1 37 83 3071 668581 24737497 55492223 2053212251