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387506028198 = 23312299097667
BaseRepresentation
bin1011010001110010010…
…10001011111010100110
31101001012221221211201110
411220321022023322212
522322103020400243
6454003503005450
736665521615152
oct5507112137246
91331187854643
10387506028198
1113a382061473
1263126b99886
132a707052513
1414a80b1c062
15a12eb00e33
hex5a3928bea6

387506028198 has 32 divisors (see below), whose sum is σ = 803506037760. Its totient is φ = 124456070880.

The previous prime is 387506028139. The next prime is 387506028227. The reversal of 387506028198 is 891820605783.

It is a happy number.

It is a super-2 number, since 2×3875060281982 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4506240 + ... + 4591427.

It is an arithmetic number, because the mean of its divisors is an integer number (25109563680).

Almost surely, 2387506028198 is an apocalyptic number.

387506028198 is an abundant number, since it is smaller than the sum of its proper divisors (416000009562).

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

387506028198 is a wasteful number, since it uses less digits than its factorization.

387506028198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097932.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 387506028198 in words is "three hundred eighty-seven billion, five hundred six million, twenty-eight thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 31 62 93 186 229 458 687 1374 7099 14198 21297 42594 9097667 18195334 27293001 54586002 282027677 564055354 846083031 1692166062 2083365743 4166731486 6250097229 12500194458 64584338033 129168676066 193753014099 387506028198