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387522560490 = 235131631960889
BaseRepresentation
bin1011010001110100010…
…01010000000111101010
31101001021010001202202120
411220322021100013222
522322121233413430
6454005253212110
736666112262232
oct5507211200752
91331233052676
10387522560490
1113a39042341a
1263130631036
132a70a5c0440
1414a82dc2cc2
15a1312b9610
hex5a3a2501ea

387522560490 has 64 divisors (see below), whose sum is σ = 1001674598400. Its totient is φ = 95382756864.

The previous prime is 387522560459. The next prime is 387522560501. The reversal of 387522560490 is 94065225783.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6333966 + ... + 6394854.

It is an arithmetic number, because the mean of its divisors is an integer number (15651165600).

Almost surely, 2387522560490 is an apocalyptic number.

387522560490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

387522560490 is an abundant number, since it is smaller than the sum of its proper divisors (614152037910).

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

387522560490 is a wasteful number, since it uses less digits than its factorization.

387522560490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77231.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 387522560490 in words is "three hundred eighty-seven billion, five hundred twenty-two million, five hundred sixty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 16319 32638 48957 60889 81595 97914 121778 163190 182667 212147 244785 304445 365334 424294 489570 608890 636441 791557 913335 1060735 1272882 1583114 1826670 2121470 2374671 3182205 3957785 4749342 6364410 7915570 11873355 23746710 993647591 1987295182 2980942773 4968237955 5961885546 9936475910 12917418683 14904713865 25834837366 29809427730 38752256049 64587093415 77504512098 129174186830 193761280245 387522560490