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67164401 = 199933599
BaseRepresentation
bin1000000000011…
…01100011110001
311200101022020102
410000031203301
5114143230101
610355322145
71443613403
oct400154361
9150338212
1067164401
1134a04677
121a5b0355
1310bb7c65
148cc4b73
155d6a86b
hex400d8f1

67164401 has 4 divisors (see below), whose sum is σ = 67200000. Its totient is φ = 67128804.

The previous prime is 67164397. The next prime is 67164403. The reversal of 67164401 is 10446176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67164401 - 22 = 67164397 is a prime.

It is a super-2 number, since 2×671644012 = 9022113523377602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67164403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14801 + ... + 18798.

It is an arithmetic number, because the mean of its divisors is an integer number (16800000).

Almost surely, 267164401 is an apocalyptic number.

It is an amenable number.

67164401 is a deficient number, since it is larger than the sum of its proper divisors (35599).

67164401 is a wasteful number, since it uses less digits than its factorization.

67164401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35598.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 67164401 is about 8195.3890084608. The cubic root of 67164401 is about 406.4867389858.

The spelling of 67164401 in words is "sixty-seven million, one hundred sixty-four thousand, four hundred one".

Divisors: 1 1999 33599 67164401