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74953031 is a prime number
BaseRepresentation
bin1000111011110…
…11000101000111
312020001000020012
410131323011013
5123141444111
611234300435
71600042646
oct435730507
9166030205
1074953031
113934435a
122112771b
13126b410a
149d5135d
1568a848b
hex477b147

74953031 has 2 divisors, whose sum is σ = 74953032. Its totient is φ = 74953030.

The previous prime is 74953019. The next prime is 74953037. The reversal of 74953031 is 13035947.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13035947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74953031 - 218 = 74690887 is a prime.

It is a super-2 number, since 2×749530312 = 11235913712173922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74953037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37476515 + 37476516.

It is an arithmetic number, because the mean of its divisors is an integer number (37476516).

Almost surely, 274953031 is an apocalyptic number.

74953031 is a deficient number, since it is larger than the sum of its proper divisors (1).

74953031 is an equidigital number, since it uses as much as digits as its factorization.

74953031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 74953031 is about 8657.5418566704. The cubic root of 74953031 is about 421.6282805143.

Adding to 74953031 its reverse (13035947), we get a palindrome (87988978).

The spelling of 74953031 in words is "seventy-four million, nine hundred fifty-three thousand, thirty-one".