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142233030 = 23352632003
BaseRepresentation
bin10000111101001…
…00110111000110
3100220122012001000
420132210313012
5242402424110
622040314130
73344650362
oct1036446706
9326565030
10142233030
1173317865
123b772946
132360c874
1414c662a2
15c7481c0
hex87a4dc6

142233030 has 64 divisors (see below), whose sum is σ = 380920320. Its totient is φ = 37765728.

The previous prime is 142232983. The next prime is 142233043. The reversal of 142233030 is 30332241.

142233030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142232994 and 142233012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70009 + ... + 72011.

It is an arithmetic number, because the mean of its divisors is an integer number (5951880).

Almost surely, 2142233030 is an apocalyptic number.

142233030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142233030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190460160).

142233030 is an abundant number, since it is smaller than the sum of its proper divisors (238687290).

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

142233030 is a wasteful number, since it uses less digits than its factorization.

142233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2276 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 142233030 is about 11926.1490012493. The cubic root of 142233030 is about 521.9955740145.

Adding to 142233030 its reverse (30332241), we get a palindrome (172565271).

The spelling of 142233030 in words is "one hundred forty-two million, two hundred thirty-three thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 263 270 526 789 1315 1578 2003 2367 2630 3945 4006 4734 6009 7101 7890 10015 11835 12018 14202 18027 20030 23670 30045 35505 36054 54081 60090 71010 90135 108162 180270 270405 526789 540810 1053578 1580367 2633945 3160734 4741101 5267890 7901835 9482202 14223303 15803670 23705505 28446606 47411010 71116515 142233030