Search a number
-
+
74230415 = 5717731709
BaseRepresentation
bin1000110110010…
…10101010001111
312011200021222122
410123022222033
5123000333130
611211003155
71560643130
oct433125217
9164607878
1074230415
11389a0456
1220a394bb
13124c022c
149c03c87
1567b42e5
hex46caa8f

74230415 has 32 divisors (see below), whose sum is σ = 109330560. Its totient is φ = 47222784.

The previous prime is 74230411. The next prime is 74230421. The reversal of 74230415 is 51403247.

It is not a de Polignac number, because 74230415 - 22 = 74230411 is a prime.

It is a super-2 number, since 2×742304152 = 11020309022144450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74230411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42581 + ... + 44289.

It is an arithmetic number, because the mean of its divisors is an integer number (3416580).

Almost surely, 274230415 is an apocalyptic number.

74230415 is a deficient number, since it is larger than the sum of its proper divisors (35100145).

74230415 is a wasteful number, since it uses less digits than its factorization.

74230415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 74230415 is about 8615.7074578934. The cubic root of 74230415 is about 420.2689415067.

The spelling of 74230415 in words is "seventy-four million, two hundred thirty thousand, four hundred fifteen".

Divisors: 1 5 7 17 35 73 85 119 365 511 595 1241 1709 2555 6205 8545 8687 11963 29053 43435 59815 124757 145265 203371 623785 873299 1016855 2120869 4366495 10604345 14846083 74230415