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2130212130 = 235209933829
BaseRepresentation
bin111111011111000…
…0111010100100010
312111110100222200120
41332332013110202
513330313242010
6551213501110
7103534334664
oct17676072442
95443328616
102130212130
119a34a39a2
124b54a1796
1327c438567
14162cb2534
15c7033e70
hex7ef87522

2130212130 has 32 divisors (see below), whose sum is σ = 5115096000. Its totient is φ = 567769152.

The previous prime is 2130212129. The next prime is 2130212141. The reversal of 2130212130 is 312120312.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 46056 + ... + 79884.

It is an arithmetic number, because the mean of its divisors is an integer number (159846750).

Almost surely, 22130212130 is an apocalyptic number.

2130212130 is an abundant number, since it is smaller than the sum of its proper divisors (2984883870).

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

2130212130 is a wasteful number, since it uses less digits than its factorization.

2130212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35938.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2130212130 is about 46154.2211503997. The cubic root of 2130212130 is about 1286.6910629068.

Adding to 2130212130 its reverse (312120312), we get a palindrome (2442332442).

The spelling of 2130212130 in words is "two billion, one hundred thirty million, two hundred twelve thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2099 4198 6297 10495 12594 20990 31485 33829 62970 67658 101487 169145 202974 338290 507435 1014870 71007071 142014142 213021213 355035355 426042426 710070710 1065106065 2130212130