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67034331 = 3371327283
BaseRepresentation
bin1111111110110…
…1110011011011
311200010200211000
43333231303123
5114130044311
610352440043
71442532240
oct377556333
9150120730
1067034331
1134925981
121a549023
1310b709b0
148c8d5c7
155d42056
hex3fedcdb

67034331 has 32 divisors (see below), whose sum is σ = 122232320. Its totient is φ = 35357472.

The previous prime is 67034329. The next prime is 67034339. The reversal of 67034331 is 13343076.

It is a happy number.

It is not a de Polignac number, because 67034331 - 21 = 67034329 is a prime.

It is a super-2 number, since 2×670343312 = 8987203065235122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 67034295 and 67034304.

It is not an unprimeable number, because it can be changed into a prime (67034339) 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, 11185 + ... + 16098.

It is an arithmetic number, because the mean of its divisors is an integer number (3819760).

Almost surely, 267034331 is an apocalyptic number.

67034331 is a deficient number, since it is larger than the sum of its proper divisors (55197989).

67034331 is a wasteful number, since it uses less digits than its factorization.

67034331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27312 (or 27306 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 67034331 is about 8187.4496028983. The cubic root of 67034331 is about 406.2241698449.

The spelling of 67034331 in words is "sixty-seven million, thirty-four thousand, three hundred thirty-one".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 189 273 351 819 2457 27283 81849 190981 245547 354679 572943 736641 1064037 1718829 2482753 3192111 5156487 7448259 9576333 22344777 67034331