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74149303 = 3115111583
BaseRepresentation
bin1000110101101…
…10110110110111
312011112011201111
410122312312313
5122440234203
611205135451
71560154504
oct432666667
9164464644
1074149303
1138945518
12209ba587
1312492337
149bc24ab
15679a26d
hex46b6db7

74149303 has 8 divisors (see below), whose sum is σ = 76640256. Its totient is φ = 71664600.

The previous prime is 74149301. The next prime is 74149307. The reversal of 74149303 is 30394147.

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

It is a cyclic number.

It is not a de Polignac number, because 74149303 - 21 = 74149301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74149301) 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, 46050 + ... + 47632.

It is an arithmetic number, because the mean of its divisors is an integer number (9580032).

Almost surely, 274149303 is an apocalyptic number.

74149303 is a deficient number, since it is larger than the sum of its proper divisors (2490953).

74149303 is a wasteful number, since it uses less digits than its factorization.

74149303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 74149303 is about 8610.9989548252. The cubic root of 74149303 is about 420.1158089563.

The spelling of 74149303 in words is "seventy-four million, one hundred forty-nine thousand, three hundred three".

Divisors: 1 31 1511 1583 46841 49073 2391913 74149303