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144674961 = 3157130697
BaseRepresentation
bin10001001111110…
…01000010010001
3101002020020201220
420213321002101
5244014044321
622204515253
73404500614
oct1047710221
9332206656
10144674961
1174735492
124054bb29
1323c861b2
141530017b
15ca7b9c6
hex89f9091

144674961 has 8 divisors (see below), whose sum is σ = 193029024. Its totient is φ = 96385440.

The previous prime is 144674897. The next prime is 144674963. The reversal of 144674961 is 169476441.

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

It is not a de Polignac number, because 144674961 - 26 = 144674897 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144674963) 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, 10636 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (24128628).

Almost surely, 2144674961 is an apocalyptic number.

It is an amenable number.

144674961 is a deficient number, since it is larger than the sum of its proper divisors (48354063).

144674961 is a wasteful number, since it uses less digits than its factorization.

144674961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32271.

The product of its digits is 145152, while the sum is 42.

The square root of 144674961 is about 12028.0904968328. The cubic root of 144674961 is about 524.9659370190.

The spelling of 144674961 in words is "one hundred forty-four million, six hundred seventy-four thousand, nine hundred sixty-one".

Divisors: 1 3 1571 4713 30697 92091 48224987 144674961