Search a number
-
+
144342040 = 2353608551
BaseRepresentation
bin10001001101001…
…11110000011000
3101001121100001111
420212213300120
5243422421130
622153430104
73401613163
oct1046476030
9331540044
10144342040
1174528347
124040b334
1323b9a7bb
1415254ada
15ca1302a
hex89a7c18

144342040 has 16 divisors (see below), whose sum is σ = 324769680. Its totient is φ = 57736800.

The previous prime is 144342007. The next prime is 144342041. The reversal of 144342040 is 40243441.

It is a super-2 number, since 2×1443420402 = 41669249022723200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144342041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804236 + ... + 1804315.

It is an arithmetic number, because the mean of its divisors is an integer number (20298105).

Almost surely, 2144342040 is an apocalyptic number.

144342040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144342040 is an abundant number, since it is smaller than the sum of its proper divisors (180427640).

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

144342040 is a wasteful number, since it uses less digits than its factorization.

144342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608562 (or 3608558 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144342040 is about 12014.2432137859. The cubic root of 144342040 is about 524.5629499482.

Adding to 144342040 its reverse (40243441), we get a palindrome (184585481).

The spelling of 144342040 in words is "one hundred forty-four million, three hundred forty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 3608551 7217102 14434204 18042755 28868408 36085510 72171020 144342040