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30634211453 = 297411030033
BaseRepresentation
bin11100100001111100…
…001111100001111101
32221001221200011221012
4130201330033201331
51000214324231303
622023445245005
72133100333556
oct344174174175
987057604835
1030634211453
1111aa023952a
125b2b403765
132b728ab851
1416a877932d
15be46535d8
hex721f0f87d

30634211453 has 4 divisors (see below), whose sum is σ = 30635271228. Its totient is φ = 30633151680.

The previous prime is 30634211441. The next prime is 30634211467. The reversal of 30634211453 is 35411243603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35411243603 = 107453329551.

It can be written as a sum of positive squares in 2 ways, for example, as 10827026809 + 19807184644 = 104053^2 + 140738^2 .

It is a cyclic number.

It is not a de Polignac number, because 30634211453 - 24 = 30634211437 is a prime.

It is a super-2 number, since 2×306342114532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30634211483) 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, 485276 + ... + 544757.

It is an arithmetic number, because the mean of its divisors is an integer number (7658817807).

Almost surely, 230634211453 is an apocalyptic number.

It is an amenable number.

30634211453 is a deficient number, since it is larger than the sum of its proper divisors (1059775).

30634211453 is a wasteful number, since it uses less digits than its factorization.

30634211453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059774.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 30634211453 in words is "thirty billion, six hundred thirty-four million, two hundred eleven thousand, four hundred fifty-three".

Divisors: 1 29741 1030033 30634211453