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42660669567 = 31710118145757
BaseRepresentation
bin100111101110110001…
…100010100001111111
311002010002120112222210
4213232301202201333
51144332112411232
631333102111503
73040112464635
oct475661424177
9132102515883
1042660669567
111710192150a
128326b7b593
13403b378159
1420c9ac3355
15119a39d5cc
hex9eec6287f

42660669567 has 32 divisors (see below), whose sum is σ = 61160508864. Its totient is φ = 26355456000.

The previous prime is 42660669563. The next prime is 42660669607. The reversal of 42660669567 is 76596606624.

It is not a de Polignac number, because 42660669567 - 22 = 42660669563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42660669563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 909453 + ... + 955209.

It is an arithmetic number, because the mean of its divisors is an integer number (1911265902).

Almost surely, 242660669567 is an apocalyptic number.

42660669567 is a deficient number, since it is larger than the sum of its proper divisors (18499839297).

42660669567 is a wasteful number, since it uses less digits than its factorization.

42660669567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46059.

The product of its (nonzero) digits is 19595520, while the sum is 57.

The spelling of 42660669567 in words is "forty-two billion, six hundred sixty million, six hundred sixty-nine thousand, five hundred sixty-seven".

Divisors: 1 3 17 51 101 181 303 543 1717 3077 5151 9231 18281 45757 54843 137271 310777 777869 932331 2333607 4621457 8282017 13864371 24846051 78564769 140794289 235694307 422382867 836483717 2509451151 14220223189 42660669567