Search a number
-
+
145537760 = 255909611
BaseRepresentation
bin10001010110010…
…11101011100000
3101010212002021102
420223023223200
5244224202020
622235213532
73415023224
oct1053135340
9333762242
10145537760
1175174745
12408a72a8
13241c8b24
1415486784
15cb9c475
hex8acbae0

145537760 has 24 divisors (see below), whose sum is σ = 343833336. Its totient is φ = 58215040.

The previous prime is 145537759. The next prime is 145537771. The reversal of 145537760 is 67735541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454646 + ... + 454965.

It is an arithmetic number, because the mean of its divisors is an integer number (14326389).

Almost surely, 2145537760 is an apocalyptic number.

145537760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145537760 is an abundant number, since it is smaller than the sum of its proper divisors (198295576).

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

145537760 is an equidigital number, since it uses as much as digits as its factorization.

145537760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909626 (or 909618 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 145537760 is about 12063.9031826354. The cubic root of 145537760 is about 526.0074502455.

The spelling of 145537760 in words is "one hundred forty-five million, five hundred thirty-seven thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 909611 1819222 3638444 4548055 7276888 9096110 14553776 18192220 29107552 36384440 72768880 145537760