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52130630 = 2559149593
BaseRepresentation
bin1100011011011…
…1001101000110
310122002111210002
43012313031012
5101321140010
65101201302
71202050226
oct306671506
9118074702
1052130630
1127476572
1215560232
13aa53136
146cd0086
15489b1a5
hex31b7346

52130630 has 32 divisors (see below), whose sum is σ = 96228000. Its totient is φ = 20326912.

The previous prime is 52130621. The next prime is 52130633. The reversal of 52130630 is 3603125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52130633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87614 + ... + 88206.

It is an arithmetic number, because the mean of its divisors is an integer number (3007125).

Almost surely, 252130630 is an apocalyptic number.

52130630 is a deficient number, since it is larger than the sum of its proper divisors (44097370).

52130630 is a wasteful number, since it uses less digits than its factorization.

52130630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 52130630 is about 7220.1544304814. The cubic root of 52130630 is about 373.5634042825.

Adding to 52130630 its reverse (3603125), we get a palindrome (55733755).

The spelling of 52130630 in words is "fifty-two million, one hundred thirty thousand, six hundred thirty".

Divisors: 1 2 5 10 59 118 149 295 298 590 593 745 1186 1490 2965 5930 8791 17582 34987 43955 69974 87910 88357 174935 176714 349870 441785 883570 5213063 10426126 26065315 52130630