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215928009906010 = 25173179834076123
BaseRepresentation
bin110001000110001010101000…
…010100111101011101011010
31001022112111221021100011200121
4301012022220110331131122
5211300231031013443020
62043123543000023454
763324166243540333
oct6106125024753532
91038474837304617
10215928009906010
116288a6113a6676
1220274365761b8a
139363c01c4332c
143b46d858cd28a
1519e6bb2ca1baa
hexc462a853d75a

215928009906010 has 64 divisors (see below), whose sum is σ = 413251668640512. Its totient is φ = 80951652484096.

The previous prime is 215928009905989. The next prime is 215928009906019. The reversal of 215928009906010 is 10609900829512.

It is not an unprimeable number, because it can be changed into a prime (215928009906019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50935809 + ... + 55011931.

It is an arithmetic number, because the mean of its divisors is an integer number (6457057322508).

Almost surely, 2215928009906010 is an apocalyptic number.

215928009906010 is a deficient number, since it is larger than the sum of its proper divisors (197323658734502).

215928009906010 is a wasteful number, since it uses less digits than its factorization.

215928009906010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077447.

The product of its (nonzero) digits is 699840, while the sum is 52.

The spelling of 215928009906010 in words is "two hundred fifteen trillion, nine hundred twenty-eight billion, nine million, nine hundred six thousand, ten".

Divisors: 1 2 5 10 17 34 85 170 317 634 983 1585 1966 3170 4915 5389 9830 10778 16711 26945 33422 53890 83555 167110 311611 623222 1558055 3116110 4076123 5297387 8152246 10594774 20380615 26486935 40761230 52973870 69294091 138588182 346470455 692940910 1292130991 2584261982 4006828909 6460654955 8013657818 12921309910 20034144545 21966226847 40068289090 43932453694 68116091453 109831134235 136232182906 219662268470 340580457265 681160914530 1270164764153 2540329528306 6350823820765 12701647641530 21592800990601 43185601981202 107964004953005 215928009906010