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215132363830 = 2531767865099
BaseRepresentation
bin1100100001011011100…
…0110101110000110110
3202120021221111102020001
43020112320311300312
512011042341120310
6242455213101514
721354115630546
oct3102670656066
9676257442201
10215132363830
118326767a10a
123583b48789a
1317396400907
14a5abb1d326
1558e1bd293a
hex3216e35c36

215132363830 has 16 divisors (see below), whose sum is σ = 388459832400. Its totient is φ = 85781483872.

The previous prime is 215132363813. The next prime is 215132363869. The reversal of 215132363830 is 38363231512.

215132363830 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215132363830.

It is a congruent number.

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, 33929380 + ... + 33935719.

It is an arithmetic number, because the mean of its divisors is an integer number (24278739525).

Almost surely, 2215132363830 is an apocalyptic number.

215132363830 is a deficient number, since it is larger than the sum of its proper divisors (173327468570).

215132363830 is a wasteful number, since it uses less digits than its factorization.

215132363830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67865423.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 215132363830 in words is "two hundred fifteen billion, one hundred thirty-two million, three hundred sixty-three thousand, eight hundred thirty".

Divisors: 1 2 5 10 317 634 1585 3170 67865099 135730198 339325495 678650990 21513236383 43026472766 107566181915 215132363830