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74968943 = 731345479
BaseRepresentation
bin1000111011111…
…10111101101111
312020001211001112
410131332331233
5123143001233
611234502235
71600140230
oct435767557
9166054045
1074968943
1139355305
122113497b
13126bb42a
149d57087
1568ad048
hex477ef6f

74968943 has 8 divisors (see below), whose sum is σ = 88442880. Its totient is φ = 62186040.

The previous prime is 74968921. The next prime is 74968969. The reversal of 74968943 is 34986947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74968943 - 26 = 74968879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74968891 and 74968900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74968043) 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, 172523 + ... + 172956.

It is an arithmetic number, because the mean of its divisors is an integer number (11055360).

Almost surely, 274968943 is an apocalyptic number.

74968943 is a deficient number, since it is larger than the sum of its proper divisors (13473937).

74968943 is a wasteful number, since it uses less digits than its factorization.

74968943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345517.

The product of its digits is 1306368, while the sum is 50.

The square root of 74968943 is about 8658.4607754496. The cubic root of 74968943 is about 421.6581146403.

The spelling of 74968943 in words is "seventy-four million, nine hundred sixty-eight thousand, nine hundred forty-three".

Divisors: 1 7 31 217 345479 2418353 10709849 74968943