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142512141 = 3192500213
BaseRepresentation
bin10000111111010…
…01000000001101
3100221011100220110
420133221000031
5242440342031
622050310233
73350222202
oct1037510015
9327140813
10142512141
1173498532
123b888379
13236a9915
1414cd9ca9
15c7a0c46
hex87e900d

142512141 has 8 divisors (see below), whose sum is σ = 200017120. Its totient is φ = 90007632.

The previous prime is 142512137. The next prime is 142512193. The reversal of 142512141 is 141215241.

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

It is not a de Polignac number, because 142512141 - 22 = 142512137 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 (142510141) 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, 1250050 + ... + 1250163.

It is an arithmetic number, because the mean of its divisors is an integer number (25002140).

Almost surely, 2142512141 is an apocalyptic number.

It is an amenable number.

142512141 is a deficient number, since it is larger than the sum of its proper divisors (57504979).

142512141 is a wasteful number, since it uses less digits than its factorization.

142512141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500235.

The product of its digits is 320, while the sum is 21.

The square root of 142512141 is about 11937.8449060121. The cubic root of 142512141 is about 522.3367969337.

Adding to 142512141 its reverse (141215241), we get a palindrome (283727382).

The spelling of 142512141 in words is "one hundred forty-two million, five hundred twelve thousand, one hundred forty-one".

Divisors: 1 3 19 57 2500213 7500639 47504047 142512141