[go: up one dir, main page]

Search a number
-
+
145665625 = 5576659
BaseRepresentation
bin10001010111010…
…10111001011001
3101011002120200011
420223222321121
5244242300000
622242041521
73416065060
oct1053527131
9334076604
10145665625
1175251816
12409492a1
13242420a1
14154bb1d7
15cbc52ba
hex8aeae59

145665625 has 24 divisors (see below), whose sum is σ = 208111680. Its totient is φ = 99870000.

The previous prime is 145665617. The next prime is 145665629. The reversal of 145665625 is 526566541.

It is not a de Polignac number, because 145665625 - 23 = 145665617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145665629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18546 + ... + 25204.

It is an arithmetic number, because the mean of its divisors is an integer number (8671320).

Almost surely, 2145665625 is an apocalyptic number.

It is an amenable number.

145665625 is a deficient number, since it is larger than the sum of its proper divisors (62446055).

145665625 is an frugal number, since it uses more digits than its factorization.

145665625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691 (or 6671 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 145665625 is about 12069.2015063135. The cubic root of 145665625 is about 526.1614498108.

It can be divided in two parts, 1456 and 65625, that added together give a square (67081 = 2592).

The spelling of 145665625 in words is "one hundred forty-five million, six hundred sixty-five thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 625 875 3125 4375 6659 21875 33295 46613 166475 233065 832375 1165325 4161875 5826625 20809375 29133125 145665625