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67716253 = 1117379787
BaseRepresentation
bin1000000100101…
…00010010011101
311201102100020101
410002110102131
5114313410003
610415221101
71451402323
oct402242235
9151370211
1067716253
1135251250
121a817791
131104c1b7
148dc9d13
155e2911d
hex409449d

67716253 has 16 divisors (see below), whose sum is σ = 80339904. Its totient is φ = 56367360.

The previous prime is 67716239. The next prime is 67716269. The reversal of 67716253 is 35261776.

It is a cyclic number.

It is not a de Polignac number, because 67716253 - 25 = 67716221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67716553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2026 + ... + 11812.

It is an arithmetic number, because the mean of its divisors is an integer number (5021244).

Almost surely, 267716253 is an apocalyptic number.

It is an amenable number.

67716253 is a deficient number, since it is larger than the sum of its proper divisors (12623651).

67716253 is a wasteful number, since it uses less digits than its factorization.

67716253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852.

The product of its digits is 52920, while the sum is 37.

The square root of 67716253 is about 8228.9885769759. The cubic root of 67716253 is about 407.5969944881.

The spelling of 67716253 in words is "sixty-seven million, seven hundred sixteen thousand, two hundred fifty-three".

Divisors: 1 11 17 37 187 407 629 6919 9787 107657 166379 362119 1830169 3983309 6156023 67716253