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27005137120 = 2551312983239
BaseRepresentation
bin11001001001101000…
…011011000011100000
32120201000221002211201
4121021220123003200
5420301303341440
620223405450544
71644132610123
oct311150330340
976630832751
1027005137120
11104a8772245
125297b70a54
132714a8bba0
1414427bc3ba
15a80c4c19a
hex649a1b0e0

27005137120 has 48 divisors (see below), whose sum is σ = 68707306080. Its totient is φ = 9971126784.

The previous prime is 27005137099. The next prime is 27005137129. The reversal of 27005137120 is 2173150072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27005137129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6489540 + ... + 6493699.

It is an arithmetic number, because the mean of its divisors is an integer number (1431402210).

Almost surely, 227005137120 is an apocalyptic number.

27005137120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27005137120 is an abundant number, since it is smaller than the sum of its proper divisors (41702168960).

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

27005137120 is a wasteful number, since it uses less digits than its factorization.

27005137120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12983267 (or 12983259 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

Adding to 27005137120 its reverse (2173150072), we get a palindrome (29178287192).

The spelling of 27005137120 in words is "twenty-seven billion, five million, one hundred thirty-seven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 12983239 25966478 51932956 64916195 103865912 129832390 168782107 207731824 259664780 337564214 415463648 519329560 675128428 843910535 1038659120 1350256856 1687821070 2077318240 2700513712 3375642140 5401027424 6751284280 13502568560 27005137120