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67145741 = 1341263479
BaseRepresentation
bin1000000000010…
…01000000001101
311200100100122022
410000021000031
5114142130431
610355055525
71443505115
oct400110015
9150310568
1067145741
11349a1653
121a5a15a5
1310bac610
148cbc045
155d6507b
hex400900d

67145741 has 16 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 60113280.

The previous prime is 67145737. The next prime is 67145773. The reversal of 67145741 is 14754176.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 67145741 - 22 = 67145737 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67141741) 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, 139940 + ... + 140418.

It is an arithmetic number, because the mean of its divisors is an integer number (4656960).

Almost surely, 267145741 is an apocalyptic number.

It is an amenable number.

67145741 is a deficient number, since it is larger than the sum of its proper divisors (7365619).

67145741 is a wasteful number, since it uses less digits than its factorization.

67145741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 23520, while the sum is 35.

The square root of 67145741 is about 8194.2504843335. The cubic root of 67145741 is about 406.4490913382.

The spelling of 67145741 in words is "sixty-seven million, one hundred forty-five thousand, seven hundred forty-one".

Divisors: 1 13 41 263 479 533 3419 6227 10783 19639 125977 140179 255307 1637701 5165057 67145741