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215135041 = 1171275461
BaseRepresentation
bin11001101001010…
…11001101000001
3112222210222210111
430310223031001
5420033310131
633203031321
75221421602
oct1464531501
9488728714
10215135041
11100490160
126006b541
1335756254
1420801da9
1513d48ab1
hexcd2b341

215135041 has 8 divisors (see below), whose sum is σ = 237999168. Its totient is φ = 192822000.

The previous prime is 215134999. The next prime is 215135047. The reversal of 215135041 is 140531512.

It is a happy number.

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 215135041 - 29 = 215134529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215135047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136950 + ... + 138511.

It is an arithmetic number, because the mean of its divisors is an integer number (29749896).

Almost surely, 2215135041 is an apocalyptic number.

It is an amenable number.

215135041 is a deficient number, since it is larger than the sum of its proper divisors (22864127).

215135041 is a wasteful number, since it uses less digits than its factorization.

215135041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275543.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 215135041 is about 14667.4824356465. The cubic root of 215135041 is about 599.1980406165.

Adding to 215135041 its reverse (140531512), we get a palindrome (355666553).

The spelling of 215135041 in words is "two hundred fifteen million, one hundred thirty-five thousand, forty-one".

Divisors: 1 11 71 781 275461 3030071 19557731 215135041