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142903151 = 208768473
BaseRepresentation
bin10001000010010…
…00011101101111
3100221220020021022
420201020131233
5243040400101
622102524355
73353441156
oct1041103557
9327806238
10142903151
1173735286
123ba366bb
13237b58a1
1414d9c59d
15c82ba1b
hex884876f

142903151 has 4 divisors (see below), whose sum is σ = 142973712. Its totient is φ = 142832592.

The previous prime is 142903129. The next prime is 142903153. The reversal of 142903151 is 151309241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142903151 - 210 = 142902127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142903151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142903153) 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 3 ways as a sum of consecutive naturals, for example, 32150 + ... + 36323.

It is an arithmetic number, because the mean of its divisors is an integer number (35743428).

Almost surely, 2142903151 is an apocalyptic number.

142903151 is a deficient number, since it is larger than the sum of its proper divisors (70561).

142903151 is an equidigital number, since it uses as much as digits as its factorization.

142903151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70560.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 142903151 is about 11954.2105971076. The cubic root of 142903151 is about 522.8140718379.

The spelling of 142903151 in words is "one hundred forty-two million, nine hundred three thousand, one hundred fifty-one".

Divisors: 1 2087 68473 142903151