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11686800380 = 2253471683977
BaseRepresentation
bin10101110001001011…
…00110101111111100
31010011110202222020112
422320211212233330
5142413310103010
65211400405152
7562416110213
oct127045465774
933143688215
1011686800380
114a57992112
122321a767b8
1311432c49c8
147cc1b007a
15486005a05
hex2b8966bfc

11686800380 has 24 divisors (see below), whose sum is σ = 24613022448. Its totient is φ = 4661245568.

The previous prime is 11686800371. The next prime is 11686800401. The reversal of 11686800380 is 8300868611.

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, 835049 + ... + 848928.

It is an arithmetic number, because the mean of its divisors is an integer number (1025542602).

Almost surely, 211686800380 is an apocalyptic number.

11686800380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11686800380 is an abundant number, since it is smaller than the sum of its proper divisors (12926222068).

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

11686800380 is a wasteful number, since it uses less digits than its factorization.

11686800380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684333 (or 1684331 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 11686800380 in words is "eleven billion, six hundred eighty-six million, eight hundred thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 347 694 1388 1735 3470 6940 1683977 3367954 6735908 8419885 16839770 33679540 584340019 1168680038 2337360076 2921700095 5843400190 11686800380