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74127031 = 1110166721
BaseRepresentation
bin1000110101100…
…01011010110111
312011111001011121
410122301122313
5122434031111
611204444411
71560032536
oct432613267
9164431147
1074127031
113892a810
12209a9707
1312485164
149bb831d
156793871
hex46b16b7

74127031 has 8 divisors (see below), whose sum is σ = 81667728. Its totient is φ = 66720000.

The previous prime is 74126993. The next prime is 74127041. The reversal of 74127031 is 13072147.

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 74127031 - 29 = 74126519 is a prime.

It is a super-2 number, since 2×741270312 = 10989633449749922, 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 = 74126987 and 74127005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74127041) 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, 32250 + ... + 34471.

It is an arithmetic number, because the mean of its divisors is an integer number (10208466).

Almost surely, 274127031 is an apocalyptic number.

74127031 is a deficient number, since it is larger than the sum of its proper divisors (7540697).

74127031 is a wasteful number, since it uses less digits than its factorization.

74127031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66833.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 74127031 is about 8609.7056279527. The cubic root of 74127031 is about 420.0737417761.

Adding to 74127031 its reverse (13072147), we get a palindrome (87199178).

It can be divided in two parts, 741 and 27031, that added together give a palindrome (27772).

The spelling of 74127031 in words is "seventy-four million, one hundred twenty-seven thousand, thirty-one".

Divisors: 1 11 101 1111 66721 733931 6738821 74127031