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67312468 = 2216828117
BaseRepresentation
bin1000000001100…
…01101101010100
311200122211100101
410000301231110
5114212444333
610402423444
71445101156
oct400615524
9150584311
1067312468
1134aa5943
121a661b84
1310c3a482
148d22ad6
155d9967d
hex4031b54

67312468 has 6 divisors (see below), whose sum is σ = 117796826. Its totient is φ = 33656232.

The previous prime is 67312429. The next prime is 67312477. The reversal of 67312468 is 86421376.

It can be written as a sum of positive squares in only one way, i.e., 65318724 + 1993744 = 8082^2 + 1412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8414055 + ... + 8414062.

Almost surely, 267312468 is an apocalyptic number.

It is an amenable number.

67312468 is a deficient number, since it is larger than the sum of its proper divisors (50484358).

67312468 is a wasteful number, since it uses less digits than its factorization.

67312468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16828121 (or 16828119 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 67312468 is about 8204.4175905423. The cubic root of 67312468 is about 406.7852259653.

The spelling of 67312468 in words is "sixty-seven million, three hundred twelve thousand, four hundred sixty-eight".

Divisors: 1 2 4 16828117 33656234 67312468