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142626380 = 225134211303
BaseRepresentation
bin10001000000001…
…00111001001100
3100221101011121112
420200010321030
5243003021010
622052551152
73351206231
oct1040047114
9327334545
10142626380
1173566346
123b9224b8
1323719910
1414d29788
15c7c4a05
hex8804e4c

142626380 has 48 divisors (see below), whose sum is σ = 323569344. Its totient is φ = 52496640.

The previous prime is 142626361. The next prime is 142626383. The reversal of 142626380 is 83626241.

It is not an unprimeable number, because it can be changed into a prime (142626383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108809 + ... + 110111.

It is an arithmetic number, because the mean of its divisors is an integer number (6741028).

Almost surely, 2142626380 is an apocalyptic number.

142626380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142626380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161784672).

142626380 is an abundant number, since it is smaller than the sum of its proper divisors (180942964).

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

142626380 is a wasteful number, since it uses less digits than its factorization.

142626380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 142626380 is about 11942.6286888608. The cubic root of 142626380 is about 522.4763295978.

The spelling of 142626380 in words is "one hundred forty-two million, six hundred twenty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 421 842 1303 1684 2105 2606 4210 5212 5473 6515 8420 10946 13030 16939 21892 26060 27365 33878 54730 67756 84695 109460 169390 338780 548563 1097126 2194252 2742815 5485630 7131319 10971260 14262638 28525276 35656595 71313190 142626380