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213775401 = 3710179781
BaseRepresentation
bin11001011110111…
…11010000101001
3112220020220201110
430233133100221
5414211303101
633113540533
75204026620
oct1457372051
9486226643
10213775401
11aa741694
125b714749
133539b428
142056a6b7
1513b7acd6
hexcbdf429

213775401 has 8 divisors (see below), whose sum is σ = 325753024. Its totient is φ = 122157360.

The previous prime is 213775379. The next prime is 213775433. The reversal of 213775401 is 104577312.

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

It is not a de Polignac number, because 213775401 - 26 = 213775337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213775451) 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, 5089870 + ... + 5089911.

It is an arithmetic number, because the mean of its divisors is an integer number (40719128).

Almost surely, 2213775401 is an apocalyptic number.

213775401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213775401 is a deficient number, since it is larger than the sum of its proper divisors (111977623).

213775401 is a wasteful number, since it uses less digits than its factorization.

213775401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179791.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 213775401 is about 14621.0601872778. The cubic root of 213775401 is about 597.9330739820.

The spelling of 213775401 in words is "two hundred thirteen million, seven hundred seventy-five thousand, four hundred one".

Divisors: 1 3 7 21 10179781 30539343 71258467 213775401