Search a number
-
+
144374737 = 1371156419
BaseRepresentation
bin10001001101011…
…11101111010001
3101001122222220111
420212233233101
5243424442422
622154241321
73402110413
oct1046575721
9331588814
10144374737
117454a971
1240426241
1323bac650
14152629b3
15ca1ca77
hex89afbd1

144374737 has 8 divisors (see below), whose sum is σ = 157671360. Its totient is φ = 131391120.

The previous prime is 144374729. The next prime is 144374759. The reversal of 144374737 is 737473441.

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 144374737 - 23 = 144374729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144374737.

It is not an unprimeable number, because it can be changed into a prime (144374717) 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, 77287 + ... + 79132.

It is an arithmetic number, because the mean of its divisors is an integer number (19708920).

Almost surely, 2144374737 is an apocalyptic number.

It is an amenable number.

144374737 is a deficient number, since it is larger than the sum of its proper divisors (13296623).

144374737 is a wasteful number, since it uses less digits than its factorization.

144374737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156503.

The product of its digits is 197568, while the sum is 40.

The square root of 144374737 is about 12015.6038966005. The cubic root of 144374737 is about 524.6025557342.

The spelling of 144374737 in words is "one hundred forty-four million, three hundred seventy-four thousand, seven hundred thirty-seven".

Divisors: 1 13 71 923 156419 2033447 11105749 144374737