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731162041 = 9754113933
BaseRepresentation
bin101011100101001…
…010010110111001
31212221210212202121
4223211022112321
52444134141131
6200315201241
724055526521
oct5345122671
91787725677
10731162041
113457a3955
12184a46221
13b863027c
146d16a681
15442ca911
hex2b94a5b9

731162041 has 8 divisors (see below), whose sum is σ = 740118344. Its totient is φ = 722234880.

The previous prime is 731161999. The next prime is 731162077. The reversal of 731162041 is 140261137.

It can be written as a sum of positive squares in 4 ways, for example, as 291043600 + 440118441 = 17060^2 + 20979^2 .

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 731162041 - 213 = 731153849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 731161997 and 731162015.

It is not an unprimeable number, because it can be changed into a prime (731132041) 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, 45511 + ... + 59443.

It is an arithmetic number, because the mean of its divisors is an integer number (92514793).

Almost surely, 2731162041 is an apocalyptic number.

It is an amenable number.

731162041 is a deficient number, since it is larger than the sum of its proper divisors (8956303).

731162041 is a wasteful number, since it uses less digits than its factorization.

731162041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14571.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 731162041 is about 27040.0081545846. The cubic root of 731162041 is about 900.8888506781. Note that the first 4 decimals are identical.

It can be divided in two parts, 73116 and 2041, that added together give a palindrome (75157).

The spelling of 731162041 in words is "seven hundred thirty-one million, one hundred sixty-two thousand, forty-one".

Divisors: 1 97 541 13933 52477 1351501 7537753 731162041