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2154460253 = 11951120593
BaseRepresentation
bin1000000001101010…
…0111010001011101
312120010222220212012
42000122213101131
513403020212003
6553441321005
7104250416141
oct20032472135
95503886765
102154460253
11a06155970
12501636165
1328447846a
141661c5221
15c92238d8
hex806a745d

2154460253 has 8 divisors (see below), whose sum is σ = 2350681536. Its totient is φ = 1958299200.

The previous prime is 2154460249. The next prime is 2154460267. The reversal of 2154460253 is 3520644512.

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

It is not a de Polignac number, because 2154460253 - 22 = 2154460249 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 (2154460223) 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, 94325 + ... + 114917.

It is an arithmetic number, because the mean of its divisors is an integer number (293835192).

Almost surely, 22154460253 is an apocalyptic number.

It is an amenable number.

2154460253 is a deficient number, since it is larger than the sum of its proper divisors (196221283).

2154460253 is a wasteful number, since it uses less digits than its factorization.

2154460253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30115.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2154460253 is about 46416.1637040374. The cubic root of 2154460253 is about 1291.5547731936.

The spelling of 2154460253 in words is "two billion, one hundred fifty-four million, four hundred sixty thousand, two hundred fifty-three".

Divisors: 1 11 9511 20593 104621 226523 195860023 2154460253