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74953349 = 613122273
BaseRepresentation
bin1000111011110…
…11001010000101
312020001000122222
410131323022011
5123142001344
611234302125
71600043612
oct435731205
9166030588
1074953349
1139344619
1221127945
13126b42c3
149d51509
1568a85ee
hex477b285

74953349 has 4 divisors (see below), whose sum is σ = 75076236. Its totient is φ = 74830464.

The previous prime is 74953339. The next prime is 74953363. The reversal of 74953349 is 94335947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94335947 = 624715101.

It can be written as a sum of positive squares in 2 ways, for example, as 25180324 + 49773025 = 5018^2 + 7055^2 .

It is a cyclic number.

It is not a de Polignac number, because 74953349 - 224 = 58176133 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 (74953339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60524 + ... + 61749.

It is an arithmetic number, because the mean of its divisors is an integer number (18769059).

Almost surely, 274953349 is an apocalyptic number.

It is an amenable number.

74953349 is a deficient number, since it is larger than the sum of its proper divisors (122887).

74953349 is a wasteful number, since it uses less digits than its factorization.

74953349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122886.

The product of its digits is 408240, while the sum is 44.

The square root of 74953349 is about 8657.5602221411. The cubic root of 74953349 is about 421.6288767882.

The spelling of 74953349 in words is "seventy-four million, nine hundred fifty-three thousand, three hundred forty-nine".

Divisors: 1 613 122273 74953349