Search a number
-
+
144156920 = 2353603923
BaseRepresentation
bin10001001011110…
…10100011111000
3101001020221010012
420211322203320
5243401010140
622145441052
73400212365
oct1045724370
9331227105
10144156920
1174411256
1240340188
1323b3446b
141520746c
15c9c8265
hex897a8f8

144156920 has 16 divisors (see below), whose sum is σ = 324353160. Its totient is φ = 57662752.

The previous prime is 144156877. The next prime is 144156931. The reversal of 144156920 is 29651441.

144156920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1801922 + ... + 1802001.

Almost surely, 2144156920 is an apocalyptic number.

144156920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144156920 is an abundant number, since it is smaller than the sum of its proper divisors (180196240).

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

144156920 is a wasteful number, since it uses less digits than its factorization.

144156920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603934 (or 3603930 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 144156920 is about 12006.5365530614. The cubic root of 144156920 is about 524.3386017345.

The spelling of 144156920 in words is "one hundred forty-four million, one hundred fifty-six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3603923 7207846 14415692 18019615 28831384 36039230 72078460 144156920