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387841026140 = 22519392051307
BaseRepresentation
bin1011010010011010010…
…00000110100001011100
31101002002022022111111122
411221031020012201130
522323244300314030
6454101031110112
740010030220431
oct5511510064134
91332068274448
10387841026140
1113a53416a377
12631bb212338
132a75b585159
1414ab3401b88
15a14e2248e5
hex5a4d20685c

387841026140 has 12 divisors (see below), whose sum is σ = 814466154936. Its totient is φ = 155136410448.

The previous prime is 387841026113. The next prime is 387841026151. The reversal of 387841026140 is 41620148783.

It is a junction number, because it is equal to n+sod(n) for n = 387841026091 and 387841026100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9696025634 + ... + 9696025673.

It is an arithmetic number, because the mean of its divisors is an integer number (67872179578).

Almost surely, 2387841026140 is an apocalyptic number.

It is an amenable number.

387841026140 is an abundant number, since it is smaller than the sum of its proper divisors (426625128796).

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

387841026140 is a wasteful number, since it uses less digits than its factorization.

387841026140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19392051316 (or 19392051314 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 387841026140 in words is "three hundred eighty-seven billion, eight hundred forty-one million, twenty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 19392051307 38784102614 77568205228 96960256535 193920513070 387841026140