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144999630 = 23251794771
BaseRepresentation
bin10001010010010…
…00010011001110
3101002211202002200
420221020103032
5244104442010
622215502330
73410322306
oct1051102316
9332752080
10144999630
1174937406
12406879a6
132406abc9
1415386606
15cae2cc0
hex8a484ce

144999630 has 48 divisors (see below), whose sum is σ = 399179664. Its totient is φ = 36391680.

The previous prime is 144999629. The next prime is 144999641. The reversal of 144999630 is 36999441.

144999630 is a `hidden beast` number, since 1 + 4 + 4 + 9 + 9 + 9 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 45856 + ... + 48915.

It is an arithmetic number, because the mean of its divisors is an integer number (8316243).

Almost surely, 2144999630 is an apocalyptic number.

144999630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144999630 is an abundant number, since it is smaller than the sum of its proper divisors (254180034).

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

144999630 is a wasteful number, since it uses less digits than its factorization.

144999630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94801 (or 94798 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 144999630 is about 12041.5792153687. The cubic root of 144999630 is about 525.3583403920.

The spelling of 144999630 in words is "one hundred forty-four million, nine hundred ninety-nine thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 94771 189542 284313 473855 568626 852939 947710 1421565 1611107 1705878 2843130 3222214 4264695 4833321 8055535 8529390 9666642 14499963 16111070 24166605 28999926 48333210 72499815 144999630