Search a number
-
+
74845345 = 524736053
BaseRepresentation
bin1000111011000…
…00110010100001
312012211112111211
410131200302201
5123130022340
611232110121
71566114001
oct435406241
9165745454
1074845345
1139280463
1221095341
13126770b3
149d24001
1568865ea
hex4760ca1

74845345 has 8 divisors (see below), whose sum is σ = 89865576. Its totient is φ = 59842176.

The previous prime is 74845321. The next prime is 74845369. The reversal of 74845345 is 54354847.

It is an interprime number because it is at equal distance from previous prime (74845321) and next prime (74845369).

It can be written as a sum of positive squares in 4 ways, for example, as 2782224 + 72063121 = 1668^2 + 8489^2 .

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 74845345 - 211 = 74843297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74845298 and 74845307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9339 + ... + 15391.

It is an arithmetic number, because the mean of its divisors is an integer number (11233197).

Almost surely, 274845345 is an apocalyptic number.

It is an amenable number.

74845345 is a deficient number, since it is larger than the sum of its proper divisors (15020231).

74845345 is a wasteful number, since it uses less digits than its factorization.

74845345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8531.

The product of its digits is 268800, while the sum is 40.

The square root of 74845345 is about 8651.3204194504. The cubic root of 74845345 is about 421.4262641151.

The spelling of 74845345 in words is "seventy-four million, eight hundred forty-five thousand, three hundred forty-five".

Divisors: 1 5 2473 6053 12365 30265 14969069 74845345