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74916031 = 197354013
BaseRepresentation
bin1000111011100…
…10000010111111
312012222010110211
410131302002333
5123134303111
611233413251
71566530041
oct435620277
9165863424
1074916031
1139319583
122110a227
13126a0318
149d41a91
15689c521
hex47720bf

74916031 has 8 divisors (see below), whose sum is σ = 79940720. Its totient is φ = 69999552.

The previous prime is 74916013. The next prime is 74916041. The reversal of 74916031 is 13061947.

It is a happy number.

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 74916031 - 25 = 74915999 is a prime.

It is a super-2 number, since 2×749160312 = 11224823401585922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74915984 and 74916002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74916001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25620 + ... + 28393.

It is an arithmetic number, because the mean of its divisors is an integer number (9992590).

Almost surely, 274916031 is an apocalyptic number.

74916031 is a deficient number, since it is larger than the sum of its proper divisors (5024689).

74916031 is a wasteful number, since it uses less digits than its factorization.

74916031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54105.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 74916031 is about 8655.4047276832. The cubic root of 74916031 is about 421.5588912188.

Adding to 74916031 its reverse (13061947), we get a palindrome (87977978).

The spelling of 74916031 in words is "seventy-four million, nine hundred sixteen thousand, thirty-one".

Divisors: 1 19 73 1387 54013 1026247 3942949 74916031