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144987932 = 2288141143
BaseRepresentation
bin10001010010001…
…01011100011100
3101002211011001102
420221011130130
5244104103212
622215332232
73410243225
oct1051053434
9332734042
10144987932
1174929641
1240681078
132406579b
141538224c
15cade5c2
hex8a4571c

144987932 has 12 divisors (see below), whose sum is σ = 254023056. Its totient is φ = 72409920.

The previous prime is 144987919. The next prime is 144987967. The reversal of 144987932 is 239789441.

It is a congruent number.

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, 17048 + ... + 24095.

It is an arithmetic number, because the mean of its divisors is an integer number (21168588).

Almost surely, 2144987932 is an apocalyptic number.

It is an amenable number.

144987932 is a deficient number, since it is larger than the sum of its proper divisors (109035124).

144987932 is a wasteful number, since it uses less digits than its factorization.

144987932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42028 (or 42026 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 144987932 is about 12041.0934719402. The cubic root of 144987932 is about 525.3442120637.

The spelling of 144987932 in words is "one hundred forty-four million, nine hundred eighty-seven thousand, nine hundred thirty-two".

Divisors: 1 2 4 881 1762 3524 41143 82286 164572 36246983 72493966 144987932