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67164269 = 471429027
BaseRepresentation
bin1000000000011…
…01100001101101
311200101022001112
410000031201231
5114143224034
610355321405
71443613124
oct400154155
9150338045
1067164269
1134a04567
121a5b0265
1310bb7b93
148cc4abb
155d6a7ce
hex400d86d

67164269 has 4 divisors (see below), whose sum is σ = 68593344. Its totient is φ = 65735196.

The previous prime is 67164247. The next prime is 67164277. The reversal of 67164269 is 96246176.

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 a de Polignac number, because none of the positive numbers 2k-67164269 is a prime.

It is a super-2 number, since 2×671642692 = 9022078060608722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67164289) 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, 714467 + ... + 714560.

It is an arithmetic number, because the mean of its divisors is an integer number (17148336).

Almost surely, 267164269 is an apocalyptic number.

It is an amenable number.

67164269 is a deficient number, since it is larger than the sum of its proper divisors (1429075).

67164269 is a wasteful number, since it uses less digits than its factorization.

67164269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429074.

The product of its digits is 108864, while the sum is 41.

The square root of 67164269 is about 8195.3809551478. The cubic root of 67164269 is about 406.4864726926.

The spelling of 67164269 in words is "sixty-seven million, one hundred sixty-four thousand, two hundred sixty-nine".

Divisors: 1 47 1429027 67164269