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1387035179380 = 22569351758969
BaseRepresentation
bin10100001011110001101…
…111010011100101110100
311220121011212101200001101
4110023301233103211310
5140211122001220010
62541110053335444
7202132011332134
oct24136157234564
94817155350041
101387035179380
11495269220704
121a4997337584
13a0a48901796
144b1c07daac4
152612ed5b73a
hex142f1bd3974

1387035179380 has 12 divisors (see below), whose sum is σ = 2912773876740. Its totient is φ = 554814071744.

The previous prime is 1387035179371. The next prime is 1387035179417. The reversal of 1387035179380 is 839715307831.

It can be written as a sum of positive squares in 2 ways, for example, as 154282412944 + 1232752766436 = 392788^2 + 1110294^2 .

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, 34675879465 + ... + 34675879504.

It is an arithmetic number, because the mean of its divisors is an integer number (242731156395).

Almost surely, 21387035179380 is an apocalyptic number.

1387035179380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1387035179380 is an abundant number, since it is smaller than the sum of its proper divisors (1525738697360).

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

1387035179380 is a wasteful number, since it uses less digits than its factorization.

1387035179380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69351758978 (or 69351758976 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 1387035179380 in words is "one trillion, three hundred eighty-seven billion, thirty-five million, one hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 69351758969 138703517938 277407035876 346758794845 693517589690 1387035179380