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6442152541 = 1117931310453
BaseRepresentation
bin1011111111111101…
…10111001001011101
3121121222001020221021
411333332313021131
5101143142340131
62543125404141
7315433251556
oct57776671135
917558036837
106442152541
112806477610
1212b9569651
137b88788a6
1445182732d
1527a875e11
hex17ffb725d

6442152541 has 16 divisors (see below), whose sum is σ = 7090320960. Its totient is φ = 5804622720.

The previous prime is 6442152529. The next prime is 6442152551. The reversal of 6442152541 is 1452512446.

It is a cyclic number.

It is not a de Polignac number, because 6442152541 - 215 = 6442119773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6442152497 and 6442152506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442152551) 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, 611071 + ... + 621523.

It is an arithmetic number, because the mean of its divisors is an integer number (443145060).

Almost surely, 26442152541 is an apocalyptic number.

It is an amenable number.

6442152541 is a deficient number, since it is larger than the sum of its proper divisors (648168419).

6442152541 is a wasteful number, since it uses less digits than its factorization.

6442152541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10956.

The product of its digits is 38400, while the sum is 34.

The square root of 6442152541 is about 80263.0210059402. The cubic root of 6442152541 is about 1860.7027580130.

Adding to 6442152541 its reverse (1452512446), we get a palindrome (7894664987).

The spelling of 6442152541 in words is "six billion, four hundred forty-two million, one hundred fifty-two thousand, five hundred forty-one".

Divisors: 1 11 179 313 1969 3443 10453 56027 114983 616297 1871087 3271789 20581957 35989679 585650231 6442152541