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74204881 = 1729150517
BaseRepresentation
bin1000110110001…
…00011011010001
312011121222221221
410123010123101
5122444024011
611210245041
71560505522
oct433043321
9164558857
1074204881
1138983253
1220a26781
13124b171a
149bd8849
1567ab971
hex46c46d1

74204881 has 8 divisors (see below), whose sum is σ = 81279720. Its totient is φ = 67431168.

The previous prime is 74204849. The next prime is 74204891. The reversal of 74204881 is 18840247.

It can be written as a sum of positive squares in 4 ways, for example, as 41486481 + 32718400 = 6441^2 + 5720^2 .

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 74204881 - 25 = 74204849 is a prime.

It is a super-2 number, since 2×742048812 = 11012728728448322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74204891) 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, 74766 + ... + 75751.

It is an arithmetic number, because the mean of its divisors is an integer number (10159965).

Almost surely, 274204881 is an apocalyptic number.

It is an amenable number.

74204881 is a deficient number, since it is larger than the sum of its proper divisors (7074839).

74204881 is a wasteful number, since it uses less digits than its factorization.

74204881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150563.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 74204881 is about 8614.2255020402. The cubic root of 74204881 is about 420.2207475248.

The spelling of 74204881 in words is "seventy-four million, two hundred four thousand, eight hundred eighty-one".

Divisors: 1 17 29 493 150517 2558789 4364993 74204881