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74272371 = 3171456321
BaseRepresentation
bin1000110110101…
…00111001110011
312011202102112120
410123110321303
5123003203441
611211525323
71561206345
oct433247163
9164672476
1074272371
1138a19a28
1220a59843
1312506364
149c15295
1567c1966
hex46d4e73

74272371 has 8 divisors (see below), whose sum is σ = 104855184. Its totient is φ = 46602240.

The previous prime is 74272351. The next prime is 74272379. The reversal of 74272371 is 17327247.

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

It is not a de Polignac number, because 74272371 - 25 = 74272339 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74272379) 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, 728110 + ... + 728211.

It is an arithmetic number, because the mean of its divisors is an integer number (13106898).

Almost surely, 274272371 is an apocalyptic number.

74272371 is a deficient number, since it is larger than the sum of its proper divisors (30582813).

74272371 is a wasteful number, since it uses less digits than its factorization.

74272371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456341.

The product of its digits is 16464, while the sum is 33.

The square root of 74272371 is about 8618.1419691254. The cubic root of 74272371 is about 420.3481070915.

The spelling of 74272371 in words is "seventy-four million, two hundred seventy-two thousand, three hundred seventy-one".

Divisors: 1 3 17 51 1456321 4368963 24757457 74272371