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389142765612 = 223210809521267
BaseRepresentation
bin1011010100110101011…
…01110110000000101100
31101012110000202201100200
411222122231312000230
522333431021444422
6454434131553500
740054214634306
oct5523255660054
91335400681320
10389142765612
11140041a45517
126350315b890
132a90817bab3
1414b98256976
15a1c865a2ac
hex5a9ab7602c

389142765612 has 18 divisors (see below), whose sum is σ = 983666435388. Its totient is φ = 129714255192.

The previous prime is 389142765587. The next prime is 389142765673. The reversal of 389142765612 is 216567241983.

It is a happy number.

389142765612 is a `hidden beast` number, since 3 + 8 + 9 + 1 + 4 + 2 + 76 + 561 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5404760598 + ... + 5404760669.

Almost surely, 2389142765612 is an apocalyptic number.

It is an amenable number.

389142765612 is an abundant number, since it is smaller than the sum of its proper divisors (594523669776).

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

389142765612 is a wasteful number, since it uses less digits than its factorization.

389142765612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10809521277 (or 10809521272 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 389142765612 in words is "three hundred eighty-nine billion, one hundred forty-two million, seven hundred sixty-five thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 10809521267 21619042534 32428563801 43238085068 64857127602 97285691403 129714255204 194571382806 389142765612