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74690285 = 547317831
BaseRepresentation
bin1000111001110…
…10111011101101
312012112122210212
410130322323231
5123110042120
611224512205
71564566635
oct434727355
9165478725
1074690285
1139184a0a
122101b665
1312621647
149cc36c5
1568556c5
hex473aeed

74690285 has 8 divisors (see below), whose sum is σ = 91535616. Its totient is φ = 58480720.

The previous prime is 74690281. The next prime is 74690293. The reversal of 74690285 is 58209647.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74690285 - 22 = 74690281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74690281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158681 + ... + 159150.

It is an arithmetic number, because the mean of its divisors is an integer number (11441952).

Almost surely, 274690285 is an apocalyptic number.

It is an amenable number.

74690285 is a deficient number, since it is larger than the sum of its proper divisors (16845331).

74690285 is a wasteful number, since it uses less digits than its factorization.

74690285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317883.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 74690285 is about 8642.3541353036. The cubic root of 74690285 is about 421.1350345341.

The spelling of 74690285 in words is "seventy-four million, six hundred ninety thousand, two hundred eighty-five".

Divisors: 1 5 47 235 317831 1589155 14938057 74690285