Search a number
-
+
145134600 = 233521323809
BaseRepresentation
bin10001010011010…
…01010000001000
3101010002121020120
420221221100020
5244123301400
622222423240
73411423642
oct1051512010
9333077216
10145134600
1174a19856
1240731b20
13240b7480
14153bd892
15cb1cca0
hex8a69408

145134600 has 192 divisors, whose sum is σ = 506217600. Its totient is φ = 34129920.

The previous prime is 145134599. The next prime is 145134607. The reversal of 145134600 is 6431541.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (145134607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178996 + ... + 179804.

It is an arithmetic number, because the mean of its divisors is an integer number (2636550).

Almost surely, 2145134600 is an apocalyptic number.

145134600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145134600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253108800).

145134600 is an abundant number, since it is smaller than the sum of its proper divisors (361083000).

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

145134600 is a wasteful number, since it uses less digits than its factorization.

145134600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 145134600 is about 12047.1822431638. The cubic root of 145134600 is about 525.5212962690.

The spelling of 145134600 in words is "one hundred forty-five million, one hundred thirty-four thousand, six hundred".