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641072471327 = 7164732034357
BaseRepresentation
bin10010101010000101110…
…01011001110100011111
32021021201102221210001222
421111002321121310133
541000404023040302
61210300555523555
764213242045251
oct11250271316437
92237642853058
10641072471327
11227971774182
12a42b1a595bb
13485b6c72592
1423057065cd1
1511a20a9dda2
hex9542e59d1f

641072471327 has 16 divisors (see below), whose sum is σ = 651459220992. Its totient is φ = 630724580640.

The previous prime is 641072471287. The next prime is 641072471339. The reversal of 641072471327 is 723174270146.

It is a cyclic number.

It is not a de Polignac number, because 641072471327 - 232 = 636777504031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641072471357) 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, 147134033 + ... + 147138389.

It is an arithmetic number, because the mean of its divisors is an integer number (40716201312).

Almost surely, 2641072471327 is an apocalyptic number.

641072471327 is a deficient number, since it is larger than the sum of its proper divisors (10386749665).

641072471327 is a wasteful number, since it uses less digits than its factorization.

641072471327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 641072471327 in words is "six hundred forty-one billion, seventy-two million, four hundred seventy-one thousand, three hundred twenty-seven".

Divisors: 1 71 647 3203 4357 45937 227413 309347 2072341 2818979 13955471 147136211 200147509 990838441 9029189737 641072471327