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10205143966 = 210957781131
BaseRepresentation
bin10011000000100011…
…00010001110011110
3222100012210000202001
421200101202032132
5131400004101331
64404351352514
7510615202213
oct114021421636
928305700661
1010205143966
1143675a0786
121b8982273a
13c68355c34
146cb4c3b0a
153eadd1561
hex26046239e

10205143966 has 16 divisors (see below), whose sum is σ = 15475117680. Its totient is φ = 5046935040.

The previous prime is 10205143931. The next prime is 10205143973. The reversal of 10205143966 is 66934150201.

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, 85221 + ... + 166351.

It is an arithmetic number, because the mean of its divisors is an integer number (967194855).

Almost surely, 210205143966 is an apocalyptic number.

10205143966 is a deficient number, since it is larger than the sum of its proper divisors (5269973714).

10205143966 is a wasteful number, since it uses less digits than its factorization.

10205143966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81819.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 10205143966 in words is "ten billion, two hundred five million, one hundred forty-three thousand, nine hundred sixty-six".

Divisors: 1 2 109 218 577 1154 62893 81131 125786 162262 8843279 17686558 46812587 93625174 5102571983 10205143966