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144230770 = 2514423077
BaseRepresentation
bin10001001100011…
…00100101110010
3101001101200102101
420212030211302
5243410341040
622151211014
73400640605
oct1046144562
9331350371
10144230770
1174461792
1240376a6a
1323b5bc68
141522633c
15c9e009a
hex898c972

144230770 has 8 divisors (see below), whose sum is σ = 259615404. Its totient is φ = 57692304.

The previous prime is 144230761. The next prime is 144230789. The reversal of 144230770 is 77032441.

It can be written as a sum of positive squares in 2 ways, for example, as 128572921 + 15657849 = 11339^2 + 3957^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7211529 + ... + 7211548.

Almost surely, 2144230770 is an apocalyptic number.

144230770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144230770 is a deficient number, since it is larger than the sum of its proper divisors (115384634).

144230770 is a wasteful number, since it uses less digits than its factorization.

144230770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14423084.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 144230770 is about 12009.6115674072. The cubic root of 144230770 is about 524.4281240765.

The spelling of 144230770 in words is "one hundred forty-four million, two hundred thirty thousand, seven hundred seventy".

Divisors: 1 2 5 10 14423077 28846154 72115385 144230770