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142423103020 = 225114115789701
BaseRepresentation
bin1000010010100100010…
…1000001011000101100
3111121121201012021012111
42010221011001120230
54313140303244040
6145232301213404
713201243254412
oct2045105013054
9447551167174
10142423103020
1155446146320
1223729261264
13105798a9573
146c713832b2
153a8880cdea
hex212914162c

142423103020 has 48 divisors (see below), whose sum is σ = 334236411936. Its totient is φ = 50527040000.

The previous prime is 142423102999. The next prime is 142423103051. The reversal of 142423103020 is 20301324241.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 142423102982 and 142423103000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7885831 + ... + 7903870.

It is an arithmetic number, because the mean of its divisors is an integer number (6963258582).

Almost surely, 2142423103020 is an apocalyptic number.

142423103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142423103020 is an abundant number, since it is smaller than the sum of its proper divisors (191813308916).

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

142423103020 is a wasteful number, since it uses less digits than its factorization.

142423103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15789762 (or 15789760 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 142423103020 its reverse (20301324241), we get a palindrome (162724427261).

The spelling of 142423103020 in words is "one hundred forty-two billion, four hundred twenty-three million, one hundred three thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 41 44 55 82 110 164 205 220 410 451 820 902 1804 2255 4510 9020 15789701 31579402 63158804 78948505 157897010 173686711 315794020 347373422 647377741 694746844 868433555 1294755482 1736867110 2589510964 3236888705 3473734220 6473777410 7121155151 12947554820 14242310302 28484620604 35605775755 71211551510 142423103020