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67485490 = 2543156943
BaseRepresentation
bin1000000010110…
…11111100110010
311200222121200121
410001123330302
5114234013430
610410240454
71446421462
oct401337462
9150877617
1067485490
1135103936
121a72612a
1310c9b157
148d69ba2
155dd0a7a
hex405bf32

67485490 has 16 divisors (see below), whose sum is σ = 124299648. Its totient is φ = 26366256.

The previous prime is 67485487. The next prime is 67485503. The reversal of 67485490 is 9458476.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78042 + ... + 78901.

It is an arithmetic number, because the mean of its divisors is an integer number (7768728).

Almost surely, 267485490 is an apocalyptic number.

67485490 is a deficient number, since it is larger than the sum of its proper divisors (56814158).

67485490 is a wasteful number, since it uses less digits than its factorization.

67485490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156993.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 67485490 is about 8214.9552646378. The cubic root of 67485490 is about 407.1334654358.

The spelling of 67485490 in words is "sixty-seven million, four hundred eighty-five thousand, four hundred ninety".

Divisors: 1 2 5 10 43 86 215 430 156943 313886 784715 1569430 6748549 13497098 33742745 67485490