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387260532 = 223210757237
BaseRepresentation
bin10111000101010…
…010000001110100
3222222200212120200
4113011102001310
51243114314112
6102232200500
712411442311
oct2705220164
9888625520
10387260532
1118966462a
12a9839130
1362300b59
1439609d08
1523ee8cdc
hex17152074

387260532 has 18 divisors (see below), whose sum is σ = 978908658. Its totient is φ = 129086832.

The previous prime is 387260507. The next prime is 387260551. The reversal of 387260532 is 235062783.

It can be written as a sum of positive squares in only one way, i.e., 264582756 + 122677776 = 16266^2 + 11076^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 10757237 = 387260532 / (3 + 8 + 7 + 2 + 6 + 0 + 5 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5378583 + ... + 5378654.

Almost surely, 2387260532 is an apocalyptic number.

It is an amenable number.

387260532 is an abundant number, since it is smaller than the sum of its proper divisors (591648126).

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

387260532 is a wasteful number, since it uses less digits than its factorization.

387260532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10757247 (or 10757242 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 387260532 is about 19678.9362517388. The cubic root of 387260532 is about 728.8996570838.

The spelling of 387260532 in words is "three hundred eighty-seven million, two hundred sixty thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 10757237 21514474 32271711 43028948 64543422 96815133 129086844 193630266 387260532