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154141231321 = 7119769204917
BaseRepresentation
bin1000111110001110001…
…0001000100011011001
3112201212100220212021101
42033203202020203121
510011140123400241
6154451141311401
714064522563650
oct2174342104331
9481770825241
10154141231321
115a409785580
1225a59705561
13116c651c7ac
14766378a197
154022450e31
hex23e38888d9

154141231321 has 16 divisors (see below), whose sum is σ = 192196690560. Its totient is φ = 120097169280.

The previous prime is 154141231319. The next prime is 154141231339. The reversal of 154141231321 is 123132141451.

It is not a de Polignac number, because 154141231321 - 21 = 154141231319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154141231321.

It is not an unprimeable number, because it can be changed into a prime (154141231721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649755 + ... + 854671.

It is an arithmetic number, because the mean of its divisors is an integer number (12012293160).

Almost surely, 2154141231321 is an apocalyptic number.

154141231321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

154141231321 is a deficient number, since it is larger than the sum of its proper divisors (38055459239).

154141231321 is a wasteful number, since it uses less digits than its factorization.

154141231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214704.

The product of its digits is 2880, while the sum is 28.

Adding to 154141231321 its reverse (123132141451), we get a palindrome (277273372772).

The spelling of 154141231321 in words is "one hundred fifty-four billion, one hundred forty-one million, two hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 7 11 77 9769 68383 107459 204917 752213 1434419 2254087 15778609 2001834173 14012839211 22020175903 154141231321