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142602146 = 2131719757
BaseRepresentation
bin10000111111111…
…10111110100010
3100221022221100222
420133332332202
5243001232041
622052243042
73351045461
oct1037767642
9327287328
10142602146
117354a115
123b910482
132370b88b
1414d209d8
15c7bc74b
hex87fefa2

142602146 has 16 divisors (see below), whose sum is σ = 216120960. Its totient is φ = 70565040.

The previous prime is 142602121. The next prime is 142602169. The reversal of 142602146 is 641206241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188000 + ... + 188756.

It is an arithmetic number, because the mean of its divisors is an integer number (13507560).

Almost surely, 2142602146 is an apocalyptic number.

142602146 is a deficient number, since it is larger than the sum of its proper divisors (73518814).

142602146 is a wasteful number, since it uses less digits than its factorization.

142602146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 142602146 is about 11941.6140450108. The cubic root of 142602146 is about 522.4467361744.

Adding to 142602146 its reverse (641206241), we get a palindrome (783808387).

The spelling of 142602146 in words is "one hundred forty-two million, six hundred two thousand, one hundred forty-six".

Divisors: 1 2 131 262 719 757 1438 1514 94189 99167 188378 198334 544283 1088566 71301073 142602146