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215442053301 = 3507714144971
BaseRepresentation
bin1100100010100101011…
…0001101100010110101
3202121002112020021022110
43020221112031202311
512012211131201201
6242550034521233
721364566144366
oct3105126154265
9677075207273
10215442053301
1183406471422
1235907136219
1317415611b17
14a5dacd5b6d
15590dea76d6
hex322958d8b5

215442053301 has 8 divisors (see below), whose sum is σ = 287312671264. Its totient is φ = 143599735440.

The previous prime is 215442053297. The next prime is 215442053339. The reversal of 215442053301 is 103350244512.

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

It is not a de Polignac number, because 215442053301 - 22 = 215442053297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215442013301) 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, 7057255 + ... + 7087716.

It is an arithmetic number, because the mean of its divisors is an integer number (35914083908).

Almost surely, 2215442053301 is an apocalyptic number.

It is an amenable number.

215442053301 is a deficient number, since it is larger than the sum of its proper divisors (71870617963).

215442053301 is a wasteful number, since it uses less digits than its factorization.

215442053301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14150051.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 215442053301 its reverse (103350244512), we get a palindrome (318792297813).

The spelling of 215442053301 in words is "two hundred fifteen billion, four hundred forty-two million, fifty-three thousand, three hundred one".

Divisors: 1 3 5077 15231 14144971 42434913 71814017767 215442053301