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144013912 = 23719912923
BaseRepresentation
bin10001001010101…
…11101001011000
3101000222122221121
420211113221120
5243331421122
622142415024
73366045430
oct1045275130
9330878847
10144013912
1174323869
1240291474
1323ab4343
14151ab2c0
15c99abc7
hex8957a58

144013912 has 32 divisors (see below), whose sum is σ = 310176000. Its totient is φ = 61405344.

The previous prime is 144013907. The next prime is 144013931. The reversal of 144013912 is 219310441.

It is a happy number.

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, 4683 + ... + 17605.

It is an arithmetic number, because the mean of its divisors is an integer number (9693000).

Almost surely, 2144013912 is an apocalyptic number.

It is an amenable number.

144013912 is an abundant number, since it is smaller than the sum of its proper divisors (166162088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144013912 is a wasteful number, since it uses less digits than its factorization.

144013912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13135 (or 13131 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 144013912 is about 12000.5796526668. The cubic root of 144013912 is about 524.1651578141.

The spelling of 144013912 in words is "one hundred forty-four million, thirteen thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 199 398 796 1393 1592 2786 5572 11144 12923 25846 51692 90461 103384 180922 361844 723688 2571677 5143354 10286708 18001739 20573416 36003478 72006956 144013912