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13139583526440 = 23335723891635209
BaseRepresentation
bin1011111100110100110000…
…1101010110011000101000
31201112010120011112100201000
42333031030031112120220
53210234331340321230
643540124043555000
72524206062115150
oct277151415263050
951463504470630
1013139583526440
114206514397108
121582657b2ba60
1374409918b847
14335d60201760
1517bbcda3db60
hexbf34c356628

13139583526440 has 1024 divisors, whose sum is σ = 53153003520000. Its totient is φ = 2822507347968.

The previous prime is 13139583526439. The next prime is 13139583526457. The reversal of 13139583526440 is 4462538593131.

13139583526440 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 9 + 583 + 52 + 6 + 4 + 4 + 0 = 666.

13139583526440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2522474556 + ... + 2522479764.

It is an arithmetic number, because the mean of its divisors is an integer number (51907230000).

Almost surely, 213139583526440 is an apocalyptic number.

13139583526440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13139583526440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26576501760000).

13139583526440 is an abundant number, since it is smaller than the sum of its proper divisors (40013419993560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13139583526440 is a wasteful number, since it uses less digits than its factorization.

13139583526440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5511 (or 5501 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 13139583526440 in words is "thirteen trillion, one hundred thirty-nine billion, five hundred eighty-three million, five hundred twenty-six thousand, four hundred forty".