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384272911961 = 2161725324517
BaseRepresentation
bin1011001011110000111…
…00110100111001011001
31100201212122021112000122
411211320130310321121
522243442331140321
6452311010043025
736522432600251
oct5457034647131
91321778245018
10384272911961
11138a7304a384
1262584279475
132a31028a4a3
1414855592961
159ee0d608ab
hex5978734e59

384272911961 has 8 divisors (see below), whose sum is σ = 384519422664. Its totient is φ = 384026469120.

The previous prime is 384272911937. The next prime is 384272911987. The reversal of 384272911961 is 169119272483.

It can be written as a sum of positive squares in 4 ways, for example, as 65351809600 + 318921102361 = 255640^2 + 564731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 384272911961 - 234 = 367093042777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384272911261) 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, 15661475 + ... + 15685991.

It is an arithmetic number, because the mean of its divisors is an integer number (48064927833).

Almost surely, 2384272911961 is an apocalyptic number.

It is an amenable number.

384272911961 is a deficient number, since it is larger than the sum of its proper divisors (246510703).

384272911961 is a wasteful number, since it uses less digits than its factorization.

384272911961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931.

The product of its digits is 1306368, while the sum is 53.

The spelling of 384272911961 in words is "three hundred eighty-four billion, two hundred seventy-two million, nine hundred eleven thousand, nine hundred sixty-one".

Divisors: 1 2161 7253 24517 15673733 52981237 177821801 384272911961