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52171130 = 251117231213
BaseRepresentation
bin1100011100000…
…1000101111010
310122011120100002
43013001011322
5101323434010
65102113002
71202306264
oct307010572
9118146302
1052171130
11274a3a40
121557b762
13aa686bb
146d00b34
1548a81a5
hex31c117a

52171130 has 64 divisors (see below), whose sum is σ = 113280768. Its totient is φ = 17064960.

The previous prime is 52171123. The next prime is 52171151. The reversal of 52171130 is 3117125.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42404 + ... + 43616.

It is an arithmetic number, because the mean of its divisors is an integer number (1770012).

Almost surely, 252171130 is an apocalyptic number.

52171130 is an abundant number, since it is smaller than the sum of its proper divisors (61109638).

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

52171130 is a wasteful number, since it uses less digits than its factorization.

52171130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 52171130 is about 7222.9585351156. The cubic root of 52171130 is about 373.6601190265.

Adding to 52171130 its reverse (3117125), we get a palindrome (55288255).

The spelling of 52171130 in words is "fifty-two million, one hundred seventy-one thousand, one hundred thirty".