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142630620 = 223511216107
BaseRepresentation
bin10001000000001…
…01111011011100
3100221101101102120
420200011323130
5243003134440
622053022540
73351224466
oct1040057334
9327341376
10142630620
1173569550
123b924a50
132371b822
1414d2b136
15c7c5dd0
hex8805edc

142630620 has 48 divisors (see below), whose sum is σ = 435673728. Its totient is φ = 34576960.

The previous prime is 142630619. The next prime is 142630639. The reversal of 142630620 is 26036241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107394 + ... + 108713.

It is an arithmetic number, because the mean of its divisors is an integer number (9076536).

Almost surely, 2142630620 is an apocalyptic number.

142630620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142630620 is an abundant number, since it is smaller than the sum of its proper divisors (293043108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142630620 is a wasteful number, since it uses less digits than its factorization.

142630620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216130 (or 216128 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 142630620 is about 11942.8062028989. The cubic root of 142630620 is about 522.4815069422.

Adding to 142630620 its reverse (26036241), we get a palindrome (168666861).

The spelling of 142630620 in words is "one hundred forty-two million, six hundred thirty thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 216107 432214 648321 864428 1080535 1296642 2161070 2377177 2593284 3241605 4322140 4754354 6483210 7131531 9508708 11885885 12966420 14263062 23771770 28526124 35657655 47543540 71315310 142630620