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2148457253 = 109139141803
BaseRepresentation
bin1000000000001110…
…1101101100100101
312112201200221021212
42000003231230211
513400001113003
6553104521205
7104145404525
oct20003555445
95481627255
102148457253
11a02825808
124bb620205
13283155ca7
141654a1685
15c8939dd8
hex800edb25

2148457253 has 8 divisors (see below), whose sum is σ = 2183781600. Its totient is φ = 2113417008.

The previous prime is 2148457249. The next prime is 2148457261. The reversal of 2148457253 is 3527548412.

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

It is a cyclic number.

It is not a de Polignac number, because 2148457253 - 22 = 2148457249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2148457253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148457273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55751 + ... + 86052.

It is an arithmetic number, because the mean of its divisors is an integer number (272972700).

Almost surely, 22148457253 is an apocalyptic number.

It is an amenable number.

2148457253 is a deficient number, since it is larger than the sum of its proper divisors (35324347).

2148457253 is a wasteful number, since it uses less digits than its factorization.

2148457253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142051.

The product of its digits is 268800, while the sum is 41.

The square root of 2148457253 is about 46351.4536233763. The cubic root of 2148457253 is about 1290.3540988546.

The spelling of 2148457253 in words is "two billion, one hundred forty-eight million, four hundred fifty-seven thousand, two hundred fifty-three".

Divisors: 1 109 139 15151 141803 15456527 19710617 2148457253