Search a number
-
+
144715870 = 25131113199
BaseRepresentation
bin10001010000000…
…11000001011110
3101002022022212001
420220003001132
5244021401440
622205432514
73405031105
oct1050030136
9332268761
10144715870
11747631a2
124056b73a
1323c9b9c0
141531103c
15ca88b9a
hex8a0305e

144715870 has 16 divisors (see below), whose sum is σ = 280526400. Its totient is φ = 53433504.

The previous prime is 144715861. The next prime is 144715871. The reversal of 144715870 is 78517441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144715871) 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, 556470 + ... + 556729.

It is an arithmetic number, because the mean of its divisors is an integer number (17532900).

Almost surely, 2144715870 is an apocalyptic number.

144715870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144715870 is a deficient number, since it is larger than the sum of its proper divisors (135810530).

144715870 is a wasteful number, since it uses less digits than its factorization.

144715870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113219.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 144715870 is about 12029.7909375018. The cubic root of 144715870 is about 525.0154130018.

The spelling of 144715870 in words is "one hundred forty-four million, seven hundred fifteen thousand, eight hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 1113199 2226398 5565995 11131990 14471587 28943174 72357935 144715870