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215242301422740 = 22356615427188639
BaseRepresentation
bin110000111100001100000000…
…111010101011110010010100
31001020002222000001212001022010
4300330030000322223302110
5211203012213131011430
62041440540451304220
763223512611600334
oct6074140072536224
91036088001761263
10215242301422740
1162645824886029
12201834972ab070
139314353602987
143b21ad66a70c4
1519d3e2d712cb0
hexc3c300eabc94

215242301422740 has 48 divisors (see below), whose sum is σ = 603590211786240. Its totient is φ = 57311112017280.

The previous prime is 215242301422727. The next prime is 215242301422789. The reversal of 215242301422740 is 47224103242512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2713554660 + ... + 2713633979.

It is an arithmetic number, because the mean of its divisors is an integer number (12574796078880).

Almost surely, 2215242301422740 is an apocalyptic number.

215242301422740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215242301422740 is an abundant number, since it is smaller than the sum of its proper divisors (388347910363500).

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

215242301422740 is a wasteful number, since it uses less digits than its factorization.

215242301422740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5427189312 (or 5427189310 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 39.

The spelling of 215242301422740 in words is "two hundred fifteen trillion, two hundred forty-two billion, three hundred one million, four hundred twenty-two thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 661 1322 1983 2644 3305 3966 6610 7932 9915 13220 19830 39660 5427188639 10854377278 16281565917 21708754556 27135943195 32563131834 54271886390 65126263668 81407829585 108543772780 162815659170 325631318340 3587371690379 7174743380758 10762115071137 14349486761516 17936858451895 21524230142274 35873716903790 43048460284548 53810575355685 71747433807580 107621150711370 215242301422740