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74139153 = 3112246641
BaseRepresentation
bin1000110101101…
…00011000010001
312011111122210120
410122310120101
5122434423103
611205020453
71560113064
oct432643021
9164448716
1074139153
1138938930
12209b4729
131248a82a
149bbc8db
156797253
hex46b4611

74139153 has 8 divisors (see below), whose sum is σ = 107838816. Its totient is φ = 44932800.

The previous prime is 74139139. The next prime is 74139161. The reversal of 74139153 is 35193147.

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

It is not a de Polignac number, because 74139153 - 224 = 57361937 is a prime.

It is a super-2 number, since 2×741391532 = 10993228015114818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2246641 = 74139153 / (7 + 4 + 1 + 3 + 9 + 1 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (74139113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123288 + ... + 1123353.

It is an arithmetic number, because the mean of its divisors is an integer number (13479852).

Almost surely, 274139153 is an apocalyptic number.

It is an amenable number.

74139153 is a deficient number, since it is larger than the sum of its proper divisors (33699663).

74139153 is a wasteful number, since it uses less digits than its factorization.

74139153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246655.

The product of its digits is 11340, while the sum is 33.

The square root of 74139153 is about 8610.4095721400. The cubic root of 74139153 is about 420.0966387602.

The spelling of 74139153 in words is "seventy-four million, one hundred thirty-nine thousand, one hundred fifty-three".

Divisors: 1 3 11 33 2246641 6739923 24713051 74139153