Search a number
-
+
2153502420253 = 23795011236519
BaseRepresentation
bin11111010101100110101…
…111110010110100011101
321121212120021201202012021
4133111212233302310131
5240240333104422003
64325145542340141
7311404540356052
oct37254657626435
97555507652167
102153502420253
11760327a7a128
122a944372a651
131280c7619942
147633146d029
153b03e2e62bd
hex1f566bf2d1d

2153502420253 has 16 divisors (see below), whose sum is σ = 2276041420800. Its totient is φ = 2033383088880.

The previous prime is 2153502420227. The next prime is 2153502420259. The reversal of 2153502420253 is 3520242053512.

It is a cyclic number.

It is not a de Polignac number, because 2153502420253 - 25 = 2153502420221 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 (2153502420259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8986728 + ... + 9223246.

It is an arithmetic number, because the mean of its divisors is an integer number (142252588800).

Almost surely, 22153502420253 is an apocalyptic number.

2153502420253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2153502420253 is a deficient number, since it is larger than the sum of its proper divisors (122539000547).

2153502420253 is a wasteful number, since it uses less digits than its factorization.

2153502420253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241632.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 2153502420253 its reverse (3520242053512), we get a palindrome (5673744473765).

The spelling of 2153502420253 in words is "two trillion, one hundred fifty-three billion, five hundred two million, four hundred twenty thousand, two hundred fifty-three".

Divisors: 1 23 79 1817 5011 115253 236519 395869 5439937 9104987 18685001 429755023 1185196709 27259524307 93630540011 2153502420253