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126064081 = 11132338329
BaseRepresentation
bin1111000001110…
…01010111010001
322210012201102001
413200321113101
5224233022311
620301554001
73060345523
oct740712721
9283181361
10126064081
11651838a0
1236275901
132016b140
1412a57a13
15b1024c1
hex78395d1

126064081 has 16 divisors (see below), whose sum is σ = 154546560. Its totient is φ = 101185920.

The previous prime is 126064079. The next prime is 126064093. The reversal of 126064081 is 180460621.

It is not a de Polignac number, because 126064081 - 21 = 126064079 is a prime.

It is a super-2 number, since 2×1260640812 = 31784305036749122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126064181) 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, 15876 + ... + 22453.

It is an arithmetic number, because the mean of its divisors is an integer number (9659160).

Almost surely, 2126064081 is an apocalyptic number.

126064081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126064081 is a deficient number, since it is larger than the sum of its proper divisors (28482479).

126064081 is a wasteful number, since it uses less digits than its factorization.

126064081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38376.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 126064081 is about 11227.8261920997. The cubic root of 126064081 is about 501.4147677554.

It can be divided in two parts, 1260 and 64081, that added together give a triangular number (65341 = T361).

The spelling of 126064081 in words is "one hundred twenty-six million, sixty-four thousand, eighty-one".

Divisors: 1 11 13 23 143 253 299 3289 38329 421619 498277 881567 5481047 9697237 11460371 126064081