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142446075 = 3521899281
BaseRepresentation
bin10000111110110…
…00110111111011
3100221001000021120
420133120313323
5242431233300
622045040323
73346525452
oct1037306773
9327030246
10142446075
1173452932
123b8560a3
1323685825
1414cbdb99
15c78b3a0
hex87d8dfb

142446075 has 12 divisors (see below), whose sum is σ = 235510968. Its totient is φ = 75971200.

The previous prime is 142446071. The next prime is 142446103. The reversal of 142446075 is 570644241.

It is not a de Polignac number, because 142446075 - 22 = 142446071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142446071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 949566 + ... + 949715.

It is an arithmetic number, because the mean of its divisors is an integer number (19625914).

Almost surely, 2142446075 is an apocalyptic number.

142446075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142446075 is a deficient number, since it is larger than the sum of its proper divisors (93064893).

142446075 is a wasteful number, since it uses less digits than its factorization.

142446075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899294 (or 1899289 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 142446075 is about 11935.0775028904. The cubic root of 142446075 is about 522.2560692228.

The spelling of 142446075 in words is "one hundred forty-two million, four hundred forty-six thousand, seventy-five".

Divisors: 1 3 5 15 25 75 1899281 5697843 9496405 28489215 47482025 142446075