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215414682020 = 22523468292787
BaseRepresentation
bin1100100010011110110…
…1110011000110100100
3202121000121201122222022
43020213231303012210
512012132124311040
6242543220122312
721364114404626
oct3104755630644
9677017648868
10215414682020
11833a1a76a2a
12358b9b36398
131740ca4a4b5
14a5d740cc16
15590b89c6b5
hex3227b731a4

215414682020 has 24 divisors (see below), whose sum is σ = 472039130304. Its totient is φ = 82419530336.

The previous prime is 215414682019. The next prime is 215414682031. The reversal of 215414682020 is 20286414512.

215414682020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2154146820202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234145934 + ... + 234146853.

It is an arithmetic number, because the mean of its divisors is an integer number (19668297096).

Almost surely, 2215414682020 is an apocalyptic number.

215414682020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215414682020 is an abundant number, since it is smaller than the sum of its proper divisors (256624448284).

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

215414682020 is a wasteful number, since it uses less digits than its factorization.

215414682020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468292819 (or 468292817 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 215414682020 in words is "two hundred fifteen billion, four hundred fourteen million, six hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 468292787 936585574 1873171148 2341463935 4682927870 9365855740 10770734101 21541468202 43082936404 53853670505 107707341010 215414682020