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144447412 = 221311811523
BaseRepresentation
bin10001001110000…
…01011110110100
3101001210200121011
420213001132310
5243434304122
622200002004
73402532324
oct1047013664
9331720534
10144447412
117459a52a
1240460304
1323c06755
1415281284
15ca34377
hex89c17b4

144447412 has 24 divisors (see below), whose sum is σ = 256288032. Its totient is φ = 71229600.

The previous prime is 144447409. The next prime is 144447421. The reversal of 144447412 is 214744441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94083 + ... + 95605.

It is an arithmetic number, because the mean of its divisors is an integer number (10678668).

Almost surely, 2144447412 is an apocalyptic number.

It is an amenable number.

144447412 is a deficient number, since it is larger than the sum of its proper divisors (111840620).

144447412 is a wasteful number, since it uses less digits than its factorization.

144447412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1837 counting only the distinct ones).

The product of its digits is 14336, while the sum is 31.

The square root of 144447412 is about 12018.6277086862. The cubic root of 144447412 is about 524.6905653499.

The spelling of 144447412 in words is "one hundred forty-four million, four hundred forty-seven thousand, four hundred twelve".

Divisors: 1 2 4 131 181 262 362 524 724 1523 3046 6092 23711 47422 94844 199513 275663 399026 551326 798052 1102652 36111853 72223706 144447412