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395025384560 = 245231759122051
BaseRepresentation
bin1011011111110010101…
…10010000010001110000
31101202121222221201111112
411233321112100101300
522433002444301220
6501245552532452
740353045240002
oct5577126202160
91352558851445
10395025384560
11142590593174
1264685251128
132b334b29a01
141519562c372
15a41ed085c5
hex5bf9590470

395025384560 has 80 divisors (see below), whose sum is σ = 958918625280. Its totient is φ = 151052985600.

The previous prime is 395025384541. The next prime is 395025384587. The reversal of 395025384560 is 65483520593.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 395025384499 and 395025384508.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3175535 + ... + 3297585.

It is an arithmetic number, because the mean of its divisors is an integer number (11986482816).

Almost surely, 2395025384560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395025384560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479459312640).

395025384560 is an abundant number, since it is smaller than the sum of its proper divisors (563893240720).

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

395025384560 is a wasteful number, since it uses less digits than its factorization.

395025384560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123846 (or 123840 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 395025384560 in words is "three hundred ninety-five billion, twenty-five million, three hundred eighty-four thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1759 1840 3518 7036 8795 14072 17590 28144 35180 40457 70360 80914 122051 140720 161828 202285 244102 323656 404570 488204 610255 647312 809140 976408 1220510 1618280 1952816 2441020 2807173 3236560 4882040 5614346 9764080 11228692 14035865 22457384 28071730 44914768 56143460 112286920 214687709 224573840 429375418 858750836 1073438545 1717501672 2146877090 3435003344 4293754180 4937817307 8587508360 9875634614 17175016720 19751269228 24689086535 39502538456 49378173070 79005076912 98756346140 197512692280 395025384560