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67042412 = 22191098093
BaseRepresentation
bin1111111110111…
…1110001101100
311200011002220022
43333233301230
5114130324122
610352541312
71442564633
oct377576154
9150132808
1067042412
1134930a58
121a551838
1310b74588
148c9251a
155d44642
hex3fefc6c

67042412 has 24 divisors (see below), whose sum is σ = 124647600. Its totient is φ = 31461696.

The previous prime is 67042399. The next prime is 67042427. The reversal of 67042412 is 21424076.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4238 + ... + 12330.

It is an arithmetic number, because the mean of its divisors is an integer number (5193650).

Almost surely, 267042412 is an apocalyptic number.

It is an amenable number.

67042412 is a deficient number, since it is larger than the sum of its proper divisors (57605188).

67042412 is a wasteful number, since it uses less digits than its factorization.

67042412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8225 (or 8223 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 67042412 is about 8187.9430872472. The cubic root of 67042412 is about 406.2404926532.

Adding to 67042412 its reverse (21424076), we get a palindrome (88466488).

The spelling of 67042412 in words is "sixty-seven million, forty-two thousand, four hundred twelve".

Divisors: 1 2 4 19 38 76 109 218 436 2071 4142 8093 8284 16186 32372 153767 307534 615068 882137 1764274 3528548 16760603 33521206 67042412