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142055125 = 53891132
BaseRepresentation
bin10000111011110…
…01011011010101
3100220022010222221
420131321123111
5242331231000
622032422341
73343306612
oct1035713325
9326263887
10142055125
1173206133
123b6a79b1
13235798b4
1414c1b509
15c71061a
hex87796d5

142055125 has 24 divisors (see below), whose sum is σ = 180877320. Its totient is φ = 111372800.

The previous prime is 142055059. The next prime is 142055131. The reversal of 142055125 is 521550241.

It can be written as a sum of positive squares in 12 ways, for example, as 133656721 + 8398404 = 11561^2 + 2898^2 .

It is not a de Polignac number, because 142055125 - 227 = 7837397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 142055125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1257069 + ... + 1257181.

It is an arithmetic number, because the mean of its divisors is an integer number (7536555).

Almost surely, 2142055125 is an apocalyptic number.

It is an amenable number.

142055125 is a deficient number, since it is larger than the sum of its proper divisors (38822195).

142055125 is an frugal number, since it uses more digits than its factorization.

142055125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 142055125 is about 11918.6880569969. The cubic root of 142055125 is about 521.7778459470. Note that the first 3 decimals are identical.

The spelling of 142055125 in words is "one hundred forty-two million, fifty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 89 113 125 445 565 2225 2825 10057 11125 12769 14125 50285 63845 251425 319225 1136441 1257125 1596125 5682205 28411025 142055125