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145205016 = 23311587937
BaseRepresentation
bin10001010011110…
…10011100011000
3101010020011211120
420221322130120
5244133030031
622224125240
73412136145
oct1051723430
9333204746
10145205016
1174a67750
1240766820
1324110538
14153db3cc
15cb33a96
hex8a7a718

145205016 has 64 divisors (see below), whose sum is σ = 397111680. Its totient is φ = 43879680.

The previous prime is 145204999. The next prime is 145205029. The reversal of 145205016 is 610502541.

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

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 15 ways as a sum of consecutive naturals, for example, 154500 + ... + 155436.

It is an arithmetic number, because the mean of its divisors is an integer number (6204870).

Almost surely, 2145205016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145205016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198555840).

145205016 is an abundant number, since it is smaller than the sum of its proper divisors (251906664).

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

145205016 is a wasteful number, since it uses less digits than its factorization.

145205016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 145205016 is about 12050.1043978880. The cubic root of 145205016 is about 525.6062728460.

Adding to 145205016 its reverse (610502541), we get a palindrome (755707557).

The spelling of 145205016 in words is "one hundred forty-five million, two hundred five thousand, sixteen".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 587 937 1174 1761 1874 2348 2811 3522 3748 4696 5622 6457 7044 7496 10307 11244 12914 14088 19371 20614 22488 25828 30921 38742 41228 51656 61842 77484 82456 123684 154968 247368 550019 1100038 1650057 2200076 3300114 4400152 6050209 6600228 12100418 13200456 18150627 24200836 36301254 48401672 72602508 145205016