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144936047 = 1949915287
BaseRepresentation
bin10001010001110…
…00110001101111
3101002201111212202
420220320301233
5244100423142
622214252115
73406636034
oct1050706157
9332644782
10144936047
11748a3663
124065703b
1324047c99
141536b38b
15cace032
hex8a38c6f

144936047 has 8 divisors (see below), whose sum is σ = 152880000. Its totient is φ = 137023704.

The previous prime is 144936031. The next prime is 144936049. The reversal of 144936047 is 740639441.

144936047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 144936047 - 24 = 144936031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144936047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144936049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838 + ... + 17124.

It is an arithmetic number, because the mean of its divisors is an integer number (19110000).

Almost surely, 2144936047 is an apocalyptic number.

144936047 is a deficient number, since it is larger than the sum of its proper divisors (7943953).

144936047 is a wasteful number, since it uses less digits than its factorization.

144936047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15805.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 144936047 is about 12038.9387821352. The cubic root of 144936047 is about 525.2815384877.

The spelling of 144936047 in words is "one hundred forty-four million, nine hundred thirty-six thousand, forty-seven".

Divisors: 1 19 499 9481 15287 290453 7628213 144936047