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74539066 = 2731415971
BaseRepresentation
bin1000111000101…
…10000000111010
312012020222101011
410130112000322
5123040222231
611221344134
71563400030
oct434260072
9165228334
1074539066
1139091338
1220b6804a
131259a874
149c84550
1568259b1
hex471603a

74539066 has 64 divisors (see below), whose sum is σ = 139345920. Its totient is φ = 29232000.

The previous prime is 74539061. The next prime is 74539079. The reversal of 74539066 is 66093547.

It is a super-3 number, since 3×745390663 (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74539061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049811 + ... + 1049881.

It is an arithmetic number, because the mean of its divisors is an integer number (2177280).

Almost surely, 274539066 is an apocalyptic number.

74539066 is a deficient number, since it is larger than the sum of its proper divisors (64806854).

74539066 is a wasteful number, since it uses less digits than its factorization.

74539066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 74539066 is about 8633.6009868420. The cubic root of 74539066 is about 420.8506305431.

The spelling of 74539066 in words is "seventy-four million, five hundred thirty-nine thousand, sixty-six".

Divisors: 1 2 7 14 31 41 59 62 71 82 118 142 217 287 413 434 497 574 826 994 1271 1829 2201 2419 2542 2911 3658 4189 4402 4838 5822 8378 8897 12803 15407 16933 17794 20377 25606 29323 30814 33866 40754 58646 74989 90241 129859 149978 171749 180482 259718 343498 524923 631687 909013 1049846 1202243 1263374 1818026 2404486 5324219 10648438 37269533 74539066