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74942043 = 31117313127
BaseRepresentation
bin1000111011110…
…00011001011011
312020000110011020
410131320121123
5123141121133
611234133523
71566665631
oct435703133
9166013136
1074942043
1139337080
12211212a3
13126ac107
149d4b351
1568a50b3
hex477865b

74942043 has 16 divisors (see below), whose sum is σ = 109645056. Its totient is φ = 45153440.

The previous prime is 74942039. The next prime is 74942047. The reversal of 74942043 is 34024947.

It is an interprime number because it is at equal distance from previous prime (74942039) and next prime (74942047).

It is a cyclic number.

It is not a de Polignac number, because 74942043 - 22 = 74942039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 74941995 and 74942013.

It is not an unprimeable number, because it can be changed into a prime (74942047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855 + ... + 12272.

It is an arithmetic number, because the mean of its divisors is an integer number (6852816).

Almost surely, 274942043 is an apocalyptic number.

74942043 is a deficient number, since it is larger than the sum of its proper divisors (34703013).

74942043 is a wasteful number, since it uses less digits than its factorization.

74942043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 74942043 is about 8656.9072421968. The cubic root of 74942043 is about 421.6076761532.

The spelling of 74942043 in words is "seventy-four million, nine hundred forty-two thousand, forty-three".

Divisors: 1 3 11 33 173 519 1903 5709 13127 39381 144397 433191 2270971 6812913 24980681 74942043