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42660149886 = 23212591882453
BaseRepresentation
bin100111101110101111…
…100011101001111110
311002010001121011010100
4213232233203221332
51144331444244021
631333043021530
73040105201554
oct475657435176
9132101534110
1042660149886
11171015a7022
12832696a8a6
13403b225753
1420c99c9bd4
15119a2e9626
hex9eebe3a7e

42660149886 has 24 divisors (see below), whose sum is σ = 92503789560. Its totient is φ = 14208747696.

The previous prime is 42660149837. The next prime is 42660149891. The reversal of 42660149886 is 68894106624.

42660149886 is a `hidden beast` number, since 4 + 26 + 601 + 4 + 9 + 8 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918565 + ... + 963888.

It is an arithmetic number, because the mean of its divisors is an integer number (3854324565).

Almost surely, 242660149886 is an apocalyptic number.

42660149886 is an abundant number, since it is smaller than the sum of its proper divisors (49843639674).

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

42660149886 is a wasteful number, since it uses less digits than its factorization.

42660149886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883720 (or 1883717 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 42660149886 in words is "forty-two billion, six hundred sixty million, one hundred forty-nine thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 1259 2518 3777 7554 11331 22662 1882453 3764906 5647359 11294718 16942077 33884154 2370008327 4740016654 7110024981 14220049962 21330074943 42660149886