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144373946 = 2611183393
BaseRepresentation
bin10001001101011…
…11100010111010
3101001122221211012
420212233202322
5243424431241
622154233522
73402105203
oct1046574272
9331587735
10144373946
117454a312
12404258a2
1323bac192
14152625aa
15ca1c6eb
hex89af8ba

144373946 has 8 divisors (see below), whose sum is σ = 220111284. Its totient is φ = 71003520.

The previous prime is 144373939. The next prime is 144373949. The reversal of 144373946 is 649373441.

It can be written as a sum of positive squares in 2 ways, for example, as 112890625 + 31483321 = 10625^2 + 5611^2 .

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

It is a super-2 number, since 2×1443739462 = 41687672567221832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144373949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591575 + ... + 591818.

Almost surely, 2144373946 is an apocalyptic number.

144373946 is a deficient number, since it is larger than the sum of its proper divisors (75737338).

144373946 is a wasteful number, since it uses less digits than its factorization.

144373946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183456.

The product of its digits is 217728, while the sum is 41.

The square root of 144373946 is about 12015.5709810229. The cubic root of 144373946 is about 524.6015976687.

The spelling of 144373946 in words is "one hundred forty-four million, three hundred seventy-three thousand, nine hundred forty-six".

Divisors: 1 2 61 122 1183393 2366786 72186973 144373946