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102020012000 = 255325505003
BaseRepresentation
bin101111100000011011…
…1011101011111100000
3100202022221122120202222
41133000313131133200
53132414110341000
6114511202530212
710241102536214
oct1370067353740
9322287576688
10102020012000
113a2a2701005
1217932366968
13980b17280a
144d1b448944
1529c1751a85
hex17c0ddd7e0

102020012000 has 48 divisors (see below), whose sum is σ = 250663179312. Its totient is φ = 40808003200.

The previous prime is 102020011969. The next prime is 102020012089. The reversal of 102020012000 is 210020201.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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, 12748502 + ... + 12756501.

It is an arithmetic number, because the mean of its divisors is an integer number (5222149569).

Almost surely, 2102020012000 is an apocalyptic number.

102020012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020012000 is an abundant number, since it is smaller than the sum of its proper divisors (148643167312).

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

102020012000 is an equidigital number, since it uses as much as digits as its factorization.

102020012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505028 (or 25505010 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 102020012000 its reverse (210020201), we get a palindrome (102230032201).

The spelling of 102020012000 in words is "one hundred two billion, twenty million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 25505003 51010006 102020012 127525015 204040024 255050030 408080048 510100060 637625075 816160096 1020200120 1275250150 2040400240 2550500300 3188125375 4080800480 5101000600 6376250750 10202001200 12752501500 20404002400 25505003000 51010006000 102020012000