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67340481 = 31323372029
BaseRepresentation
bin1000000001110…
…00100011000001
311200201020202220
410000320203001
5114214343411
610403201253
71445245635
oct400704301
9150636686
1067340481
113501499a
121a676229
1310c4a150
148d2cdc5
155da2b06
hex40388c1

67340481 has 32 divisors (see below), whose sum is σ = 103676160. Its totient is φ = 38548224.

The previous prime is 67340477. The next prime is 67340501. The reversal of 67340481 is 18404376.

It is not a de Polignac number, because 67340481 - 22 = 67340477 is a prime.

It is a super-2 number, since 2×673404812 = 9069480762622722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67340431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32175 + ... + 34203.

It is an arithmetic number, because the mean of its divisors is an integer number (3239880).

Almost surely, 267340481 is an apocalyptic number.

It is an amenable number.

67340481 is a deficient number, since it is larger than the sum of its proper divisors (36335679).

67340481 is a wasteful number, since it uses less digits than its factorization.

67340481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 67340481 is about 8206.1246030023. The cubic root of 67340481 is about 406.8416478758.

The spelling of 67340481 in words is "sixty-seven million, three hundred forty thousand, four hundred eighty-one".

Divisors: 1 3 13 23 37 39 69 111 299 481 851 897 1443 2029 2553 6087 11063 26377 33189 46667 75073 79131 140001 225219 606671 975949 1726679 1820013 2927847 5180037 22446827 67340481