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142223285887 = 2512503226379
BaseRepresentation
bin1000010001110100101…
…0110001111001111111
3111121002210012111121221
42010131022301321333
54312233130122022
6145200402334211
713163265661234
oct2043512617177
9447083174557
10142223285887
11553533787a1
122369235a367
1310547387587
146c52a0b78b
153a75edccc7
hex211d2b1e7f

142223285887 has 8 divisors (see below), whose sum is σ = 142847591040. Its totient is φ = 141599439000.

The previous prime is 142223285879. The next prime is 142223285891. The reversal of 142223285887 is 788582322241.

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

It is a cyclic number.

It is not a de Polignac number, because 142223285887 - 23 = 142223285879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142223285807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515064 + ... + 741442.

It is an arithmetic number, because the mean of its divisors is an integer number (17855948880).

Almost surely, 2142223285887 is an apocalyptic number.

142223285887 is a deficient number, since it is larger than the sum of its proper divisors (624305153).

142223285887 is a wasteful number, since it uses less digits than its factorization.

142223285887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229133.

The product of its digits is 3440640, while the sum is 52.

The spelling of 142223285887 in words is "one hundred forty-two billion, two hundred twenty-three million, two hundred eighty-five thousand, eight hundred eighty-seven".

Divisors: 1 251 2503 226379 628253 56821129 566626637 142223285887