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74234789018 = 2132855184193
BaseRepresentation
bin100010100100010111…
…1001111110010011010
321002121112212000022022
41011020233033302122
52204013101222033
654034125054442
75235415203215
oct1051057176232
9232545760268
1074234789018
112953466a805
12124790b7422
1370008b4080
14384320677c
151de72b3098
hex1148bcfc9a

74234789018 has 8 divisors (see below), whose sum is σ = 119917736148. Its totient is φ = 34262210304.

The previous prime is 74234788973. The next prime is 74234789053. The reversal of 74234789018 is 81098743247.

It can be written as a sum of positive squares in 2 ways, for example, as 73569510169 + 665278849 = 271237^2 + 25793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427592071 + ... + 1427592122.

Almost surely, 274234789018 is an apocalyptic number.

74234789018 is a deficient number, since it is larger than the sum of its proper divisors (45682947130).

74234789018 is a wasteful number, since it uses less digits than its factorization.

74234789018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855184208.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 74234789018 in words is "seventy-four billion, two hundred thirty-four million, seven hundred eighty-nine thousand, eighteen".

Divisors: 1 2 13 26 2855184193 5710368386 37117394509 74234789018