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13550053631 = 101391336429
BaseRepresentation
bin11001001111010010…
…10110100011111111
31021222022211001012012
430213221112203333
5210222303204011
610120320401435
7656532361352
oct144751264377
937868731165
1013550053631
115823719934
122761a7627b
13137c33071a
14927830299
155448a5a8b
hex327a568ff

13550053631 has 4 divisors (see below), whose sum is σ = 13551400200. Its totient is φ = 13548707064.

The previous prime is 13550053603. The next prime is 13550053639. The reversal of 13550053631 is 13635005531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13550053631 - 214 = 13550037247 is a prime.

It is a super-2 number, since 2×135500536312 (a number of 21 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 (13550053639) 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, 658076 + ... + 678353.

It is an arithmetic number, because the mean of its divisors is an integer number (3387850050).

Almost surely, 213550053631 is an apocalyptic number.

13550053631 is a deficient number, since it is larger than the sum of its proper divisors (1346569).

13550053631 is a wasteful number, since it uses less digits than its factorization.

13550053631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346568.

The product of its (nonzero) digits is 20250, while the sum is 32.

The spelling of 13550053631 in words is "thirteen billion, five hundred fifty million, fifty-three thousand, six hundred thirty-one".

Divisors: 1 10139 1336429 13550053631