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13824407487 = 3112953141863
BaseRepresentation
bin11001101111111111…
…11011011110111111
31022200110001122221010
430313333323132333
5211303022014422
610203441010303
7666403345002
oct146777733677
938613048833
1013824407487
115954576a60
122819923993
1313c411c197
14952049539
1555d9eab0c
hex337ffb7bf

13824407487 has 16 divisors (see below), whose sum is σ = 20115180288. Its totient is φ = 8375532480.

The previous prime is 13824407447. The next prime is 13824407489. The reversal of 13824407487 is 78470442831.

It is not a de Polignac number, because 13824407487 - 220 = 13823358911 is a prime.

It is a super-2 number, since 2×138244074872 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13824407489) 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, 26518 + ... + 168380.

It is an arithmetic number, because the mean of its divisors is an integer number (1257198768).

Almost surely, 213824407487 is an apocalyptic number.

13824407487 is a deficient number, since it is larger than the sum of its proper divisors (6290772801).

13824407487 is a wasteful number, since it uses less digits than its factorization.

13824407487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144830.

The product of its (nonzero) digits is 1204224, while the sum is 48.

The spelling of 13824407487 in words is "thirteen billion, eight hundred twenty-four million, four hundred seven thousand, four hundred eighty-seven".

Divisors: 1 3 11 33 2953 8859 32483 97449 141863 425589 1560493 4681479 418921439 1256764317 4608135829 13824407487