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74871092 = 2222981737
BaseRepresentation
bin1000111011001…
…11000100110100
312012212211211102
410131213010310
5123131333332
611232425232
71566252032
oct435470464
9165784742
1074871092
113929883a
12210a8218
1312685a2a
149d2d552
15688e062
hex4767134

74871092 has 12 divisors (see below), whose sum is σ = 131598180. Its totient is φ = 37271616.

The previous prime is 74871089. The next prime is 74871101. The reversal of 74871092 is 29017847.

It can be written as a sum of positive squares in 2 ways, for example, as 45212176 + 29658916 = 6724^2 + 5446^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 39953 + ... + 41784.

It is an arithmetic number, because the mean of its divisors is an integer number (10966515).

Almost surely, 274871092 is an apocalyptic number.

It is an amenable number.

74871092 is a deficient number, since it is larger than the sum of its proper divisors (56727088).

74871092 is a wasteful number, since it uses less digits than its factorization.

74871092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81970 (or 81968 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 74871092 is about 8652.8083302475. The cubic root of 74871092 is about 421.4745824978.

The spelling of 74871092 in words is "seventy-four million, eight hundred seventy-one thousand, ninety-two".

Divisors: 1 2 4 229 458 916 81737 163474 326948 18717773 37435546 74871092