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142155166 = 2471512289
BaseRepresentation
bin10000111100100…
…01110110011110
3100220111020020011
420132101312132
5242342431131
622034513434
73344204356
oct1036216636
9326436204
10142155166
117327430a
123b73587a
13235b32aa
1414c45b66
15c7300b1
hex8791d9e

142155166 has 8 divisors (see below), whose sum is σ = 217769760. Its totient is φ = 69565248.

The previous prime is 142155133. The next prime is 142155197. The reversal of 142155166 is 661551241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756051 + ... + 756238.

It is an arithmetic number, because the mean of its divisors is an integer number (27221220).

Almost surely, 2142155166 is an apocalyptic number.

142155166 is a deficient number, since it is larger than the sum of its proper divisors (75614594).

142155166 is a wasteful number, since it uses less digits than its factorization.

142155166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512338.

The product of its digits is 7200, while the sum is 31.

The square root of 142155166 is about 11922.8841309475. The cubic root of 142155166 is about 521.9003029361.

The spelling of 142155166 in words is "one hundred forty-two million, one hundred fifty-five thousand, one hundred sixty-six".

Divisors: 1 2 47 94 1512289 3024578 71077583 142155166