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74240343 = 321732373
BaseRepresentation
bin1000110110011…
…01000101010111
312011200210121100
410123031011113
5123001142333
611211121143
71561014102
oct433150527
9164623540
1074240343
11389a7961
1220a431b3
13124c48c8
149c07739
1567b7213
hex46cd157

74240343 has 48 divisors (see below), whose sum is σ = 120519360. Its totient is φ = 43946496.

The previous prime is 74240323. The next prime is 74240347. The reversal of 74240343 is 34304247.

It is not a de Polignac number, because 74240343 - 25 = 74240311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74240347) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1016955 + ... + 1017027.

It is an arithmetic number, because the mean of its divisors is an integer number (2510820).

Almost surely, 274240343 is an apocalyptic number.

74240343 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

74240343 is a deficient number, since it is larger than the sum of its proper divisors (46279017).

74240343 is a wasteful number, since it uses less digits than its factorization.

74240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 74240343 is about 8616.2835956113. The cubic root of 74240343 is about 420.2876770616.

The spelling of 74240343 in words is "seventy-four million, two hundred forty thousand, three hundred forty-three".

Divisors: 1 3 9 17 23 51 69 73 153 207 219 289 391 657 867 1173 1241 1679 2601 3519 3723 4913 5037 6647 11169 14739 15111 19941 21097 28543 44217 59823 63291 85629 112999 189873 256887 338997 358649 485231 1016991 1075947 1455693 3227841 4367079 8248927 24746781 74240343