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144850642 = 21719239749
BaseRepresentation
bin10001010001000…
…11111011010010
3101002120011201121
420220203323102
5244040210032
622212352454
73406132036
oct1050437322
9332504647
10144850642
1174845482
124061572a
1324018151
14153481c6
15cab3a97
hex8a23ed2

144850642 has 32 divisors (see below), whose sum is σ = 252720000. Its totient is φ = 61763328.

The previous prime is 144850637. The next prime is 144850681. The reversal of 144850642 is 246058441.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 144850598 and 144850607.

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, 9984 + ... + 19732.

It is an arithmetic number, because the mean of its divisors is an integer number (7897500).

Almost surely, 2144850642 is an apocalyptic number.

144850642 is a deficient number, since it is larger than the sum of its proper divisors (107869358).

144850642 is a wasteful number, since it uses less digits than its factorization.

144850642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9810.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 144850642 is about 12035.3912275422. The cubic root of 144850642 is about 525.1783424337.

The spelling of 144850642 in words is "one hundred forty-four million, eight hundred fifty thousand, six hundred forty-two".

Divisors: 1 2 17 19 23 34 38 46 323 391 437 646 782 874 7429 9749 14858 19498 165733 185231 224227 331466 370462 448454 3148927 3811859 4260313 6297854 7623718 8520626 72425321 144850642