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74948133 = 3131921747
BaseRepresentation
bin1000111011110…
…01111000100101
312020000202111210
410131321320211
5123141320013
611234222033
71600022451
oct435717045
9166022453
1074948133
1139340707
1221124919
13126b1b10
149d4d661
1568a6cc3
hex4779e25

74948133 has 8 divisors (see below), whose sum is σ = 107617888. Its totient is φ = 46121904.

The previous prime is 74948129. The next prime is 74948147. The reversal of 74948133 is 33184947.

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

It is not a de Polignac number, because 74948133 - 22 = 74948129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1921747 = 74948133 / (7 + 4 + 9 + 4 + 8 + 1 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74948091 and 74948100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74948233) 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, 960835 + ... + 960912.

It is an arithmetic number, because the mean of its divisors is an integer number (13452236).

Almost surely, 274948133 is an apocalyptic number.

It is an amenable number.

74948133 is a deficient number, since it is larger than the sum of its proper divisors (32669755).

74948133 is a wasteful number, since it uses less digits than its factorization.

74948133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921763.

The product of its digits is 72576, while the sum is 39.

The square root of 74948133 is about 8657.2589772976. The cubic root of 74948133 is about 421.6190961835.

The spelling of 74948133 in words is "seventy-four million, nine hundred forty-eight thousand, one hundred thirty-three".

Divisors: 1 3 13 39 1921747 5765241 24982711 74948133