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67388006 = 2727717377
BaseRepresentation
bin1000000010001…
…00001001100110
311200210122222002
410001010021212
5114222404011
610404205302
71445534330
oct401041146
9150718862
1067388006
1135047674
121a699832
1310c6597a
148d42450
155db1c3b
hex4044266

67388006 has 16 divisors (see below), whose sum is σ = 115946016. Its totient is φ = 28774656.

The previous prime is 67387921. The next prime is 67388023. The reversal of 67388006 is 60088376.

It is a super-2 number, since 2×673880062 = 9082286705312072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811 + ... + 12566.

It is an arithmetic number, because the mean of its divisors is an integer number (7246626).

Almost surely, 267388006 is an apocalyptic number.

67388006 is a deficient number, since it is larger than the sum of its proper divisors (48558010).

67388006 is a wasteful number, since it uses less digits than its factorization.

67388006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17663.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 67388006 is about 8209.0197953227. The cubic root of 67388006 is about 406.9373337706.

The spelling of 67388006 in words is "sixty-seven million, three hundred eighty-eight thousand, six".

Divisors: 1 2 7 14 277 554 1939 3878 17377 34754 121639 243278 4813429 9626858 33694003 67388006