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213165401 = 10310212027
BaseRepresentation
bin11001011010010…
…10010101011001
3112212002220221212
430231022111121
5414032243101
633052512505
75165606321
oct1455122531
9485086855
10213165401
11aa365359
125b47b735
1335216897
142044c281
1513aaa1bb
hexcb4a559

213165401 has 8 divisors (see below), whose sum is σ = 215552064. Its totient is φ = 210785040.

The previous prime is 213165377. The next prime is 213165439. The reversal of 213165401 is 104561312.

213165401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213165401 - 214 = 213149017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213165451) 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, 104150 + ... + 106176.

It is an arithmetic number, because the mean of its divisors is an integer number (26944008).

Almost surely, 2213165401 is an apocalyptic number.

It is an amenable number.

213165401 is a deficient number, since it is larger than the sum of its proper divisors (2386663).

213165401 is a wasteful number, since it uses less digits than its factorization.

213165401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 213165401 is about 14600.1849645818. The cubic root of 213165401 is about 597.3638057258.

The spelling of 213165401 in words is "two hundred thirteen million, one hundred sixty-five thousand, four hundred one".

Divisors: 1 103 1021 2027 105163 208781 2069567 213165401