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145010000 = 245417853
BaseRepresentation
bin10001010010010…
…10110101010000
3101002212021022202
420221022311100
5244110310000
622220022332
73410364452
oct1051126520
9332767282
10145010000
1174944183
12406919a8
1324072845
141538a2d2
15cae5dd5
hex8a4ad50

145010000 has 100 divisors (see below), whose sum is σ = 372171492. Its totient is φ = 54528000.

The previous prime is 145009999. The next prime is 145010011. The reversal of 145010000 is 10541.

It can be written as a sum of positive squares in 10 ways, for example, as 125260864 + 19749136 = 11192^2 + 4444^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 169574 + ... + 170426.

Almost surely, 2145010000 is an apocalyptic number.

145010000 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 145010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186085746).

145010000 is an abundant number, since it is smaller than the sum of its proper divisors (227161492).

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

145010000 is an equidigital number, since it uses as much as digits as its factorization.

145010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 145010000 is about 12042.0097990327. The cubic root of 145010000 is about 525.3708641852.

Adding to 145010000 its reverse (10541), we get a palindrome (145020541).

The spelling of 145010000 in words is "one hundred forty-five million, ten thousand".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 125 136 170 200 250 272 340 400 425 500 625 680 850 853 1000 1250 1360 1700 1706 2000 2125 2500 3400 3412 4250 4265 5000 6800 6824 8500 8530 10000 10625 13648 14501 17000 17060 21250 21325 29002 34000 34120 42500 42650 58004 68240 72505 85000 85300 106625 116008 145010 170000 170600 213250 232016 290020 341200 362525 426500 533125 580040 725050 853000 1066250 1160080 1450100 1706000 1812625 2132500 2900200 3625250 4265000 5800400 7250500 8530000 9063125 14501000 18126250 29002000 36252500 72505000 145010000