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142205420320 = 2556713265431
BaseRepresentation
bin1000010001110000011…
…0101000001100100000
3111121001112120211200021
42010130012220030200
54312214041422240
6145154523403224
713162661062105
oct2043406501440
9447045524607
10142205420320
1155344286067
1223688383514
1310543770832
146c504baaac
153a7465e54a
hex211c1a8320

142205420320 has 48 divisors (see below), whose sum is σ = 340974664128. Its totient is φ = 56033176320.

The previous prime is 142205420309. The next prime is 142205420341. The reversal of 142205420320 is 23024502241.

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, 6621996 + ... + 6643435.

It is an arithmetic number, because the mean of its divisors is an integer number (7103638836).

Almost surely, 2142205420320 is an apocalyptic number.

142205420320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142205420320 is an abundant number, since it is smaller than the sum of its proper divisors (198769243808).

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

142205420320 is a wasteful number, since it uses less digits than its factorization.

142205420320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13265513 (or 13265505 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 142205420320 its reverse (23024502241), we get a palindrome (165229922561).

The spelling of 142205420320 in words is "one hundred forty-two billion, two hundred five million, four hundred twenty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 67 80 134 160 268 335 536 670 1072 1340 2144 2680 5360 10720 13265431 26530862 53061724 66327155 106123448 132654310 212246896 265308620 424493792 530617240 888783877 1061234480 1777567754 2122468960 3555135508 4443919385 7110271016 8887838770 14220542032 17775677540 28441084064 35551355080 71102710160 142205420320