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74188801 = 971734421
BaseRepresentation
bin1000110110000…
…00100000000001
312011121011220101
410123000200001
5122443020201
611210042401
71560410611
oct433004001
9164534811
1074188801
1138972165
1220a19401
13124a72cb
149bd2a41
1567a6d01
hex46c0801

74188801 has 8 divisors (see below), whose sum is σ = 75403944. Its totient is φ = 72983040.

The previous prime is 74188789. The next prime is 74188813. The reversal of 74188801 is 10888147.

It is an interprime number because it is at equal distance from previous prime (74188789) and next prime (74188813).

It can be written as a sum of positive squares in 4 ways, for example, as 37271025 + 36917776 = 6105^2 + 6076^2 .

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 74188801 - 25 = 74188769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74188001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14571 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (9425493).

Almost surely, 274188801 is an apocalyptic number.

It is an amenable number.

74188801 is a deficient number, since it is larger than the sum of its proper divisors (1215143).

74188801 is a wasteful number, since it uses less digits than its factorization.

74188801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 74188801 is about 8613.2921116145. The cubic root of 74188801 is about 420.1903917599.

The spelling of 74188801 in words is "seventy-four million, one hundred eighty-eight thousand, eight hundred one".

Divisors: 1 97 173 4421 16781 428837 764833 74188801