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74874401 = 725992551
BaseRepresentation
bin1000111011001…
…11111000100001
312012220000100222
410131213320201
5123131440101
611232452425
71566264500
oct435477041
9165800328
1074874401
11392a0278
12210aa115
13126873a4
149d30837
15689001b
hex4767e21

74874401 has 12 divisors (see below), whose sum is σ = 87278400. Its totient is φ = 64045800.

The previous prime is 74874391. The next prime is 74874413. The reversal of 74874401 is 10447847.

It is a de Polignac number, because none of the positive numbers 2k-74874401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74874461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28076 + ... + 30626.

It is an arithmetic number, because the mean of its divisors is an integer number (7273200).

Almost surely, 274874401 is an apocalyptic number.

It is an amenable number.

74874401 is a deficient number, since it is larger than the sum of its proper divisors (12403999).

74874401 is a wasteful number, since it uses less digits than its factorization.

74874401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 74874401 is about 8652.9995377326. Note that the first 3 decimals coincide. The cubic root of 74874401 is about 421.4807915646.

The spelling of 74874401 in words is "seventy-four million, eight hundred seventy-four thousand, four hundred one".

Divisors: 1 7 49 599 2551 4193 17857 29351 124999 1528049 10696343 74874401