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71489038 = 2311153049
BaseRepresentation
bin1000100001011…
…01011000001110
311222112000112011
410100231120032
5121300122123
611032131434
71525434565
oct420553016
9158460464
1071489038
1137398855
121bb36b7a
1311a7050a
1496ccbdc
156421e0d
hex442d60e

71489038 has 8 divisors (see below), whose sum is σ = 110692800. Its totient is φ = 34591440.

The previous prime is 71489023. The next prime is 71489059. The reversal of 71489038 is 83098417.

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

It is a super-3 number, since 3×714890383 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 576463 + ... + 576586.

It is an arithmetic number, because the mean of its divisors is an integer number (13836600).

Almost surely, 271489038 is an apocalyptic number.

71489038 is a deficient number, since it is larger than the sum of its proper divisors (39203762).

71489038 is a wasteful number, since it uses less digits than its factorization.

71489038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153082.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 71489038 is about 8455.1190411490. The cubic root of 71489038 is about 415.0303127807.

The spelling of 71489038 in words is "seventy-one million, four hundred eighty-nine thousand, thirty-eight".

Divisors: 1 2 31 62 1153049 2306098 35744519 71489038