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143925145 = 57131723809
BaseRepresentation
bin10001001010000…
…01111110011001
3101000211011011221
420211001332121
5243321101040
622140452041
73365225560
oct1045017631
9330734157
10143925145
1174273101
124024a021
1323a82b10
1415186bd7
15c97e74a
hex8941f99

143925145 has 64 divisors (see below), whose sum is σ = 235146240. Its totient is φ = 81911808.

The previous prime is 143925143. The next prime is 143925151. The reversal of 143925145 is 541529341.

It is a cyclic number.

It is not a de Polignac number, because 143925145 - 21 = 143925143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143925145.

It is not an unprimeable number, because it can be changed into a prime (143925143) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 177501 + ... + 178309.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 2143925145 is an apocalyptic number.

It is an amenable number.

143925145 is a deficient number, since it is larger than the sum of its proper divisors (91221095).

143925145 is a wasteful number, since it uses less digits than its factorization.

143925145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its digits is 21600, while the sum is 34.

The square root of 143925145 is about 11996.8806362321. The cubic root of 143925145 is about 524.0574410643.

The spelling of 143925145 in words is "one hundred forty-three million, nine hundred twenty-five thousand, one hundred forty-five".

Divisors: 1 5 7 13 17 23 35 65 85 91 115 119 161 221 299 391 455 595 805 809 1105 1495 1547 1955 2093 2737 4045 5083 5663 7735 10465 10517 13685 13753 18607 25415 28315 35581 52585 68765 73619 93035 96271 130249 177905 178789 241891 316319 368095 481355 651245 893945 1209455 1251523 1581595 1693237 2214233 4112147 6257615 8466185 11071165 20560735 28785029 143925145