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144783970 = 2547308051
BaseRepresentation
bin10001010000100…
…11101001100010
3101002102210021021
420220103221202
5244031041340
622211120054
73405433462
oct1050235142
9332383237
10144783970
11747aa381
12405a302a
1323cc39b6
141532bba2
15ca9de4a
hex8a13a62

144783970 has 16 divisors (see below), whose sum is σ = 266156928. Its totient is φ = 56681200.

The previous prime is 144783959. The next prime is 144783973. The reversal of 144783970 is 79387441.

It is not an unprimeable number, because it can be changed into a prime (144783973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 153556 + ... + 154495.

It is an arithmetic number, because the mean of its divisors is an integer number (16634808).

Almost surely, 2144783970 is an apocalyptic number.

144783970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144783970 is a deficient number, since it is larger than the sum of its proper divisors (121372958).

144783970 is a wasteful number, since it uses less digits than its factorization.

144783970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308105.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 144783970 is about 12032.6210777203. The cubic root of 144783970 is about 525.0977535284.

The spelling of 144783970 in words is "one hundred forty-four million, seven hundred eighty-three thousand, nine hundred seventy".

Divisors: 1 2 5 10 47 94 235 470 308051 616102 1540255 3080510 14478397 28956794 72391985 144783970