Search a number
-
+
145205070 = 2354840169
BaseRepresentation
bin10001010011110…
…10011101001110
3101010020011220120
420221322131032
5244133030240
622224125410
73412136253
oct1051723516
9333204816
10145205070
1174a6779a
1240766866
132411057a
14153db42a
15cb33ad0
hex8a7a74e

145205070 has 16 divisors (see below), whose sum is σ = 348492240. Its totient is φ = 38721344.

The previous prime is 145205063. The next prime is 145205111. The reversal of 145205070 is 70502541.

It is a self number, because there is not a number n which added to its sum of digits gives 145205070.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2420055 + ... + 2420114.

It is an arithmetic number, because the mean of its divisors is an integer number (21780765).

Almost surely, 2145205070 is an apocalyptic number.

145205070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145205070 is an abundant number, since it is smaller than the sum of its proper divisors (203287170).

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

145205070 is a wasteful number, since it uses less digits than its factorization.

145205070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840179.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 145205070 is about 12050.1066385323. The cubic root of 145205070 is about 525.6063380015.

It can be divided in two parts, 14520 and 5070, that multiplied together give a square (73616400 = 85802).

The spelling of 145205070 in words is "one hundred forty-five million, two hundred five thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 4840169 9680338 14520507 24200845 29041014 48401690 72602535 145205070