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2130313212 = 2232193114493
BaseRepresentation
bin111111011111001…
…1111111111111100
312111110120010100100
41332332133333330
513330330010322
6551220001100
7103535235456
oct17676377774
95443503310
102130313212
119a3562935
124b5530190
1327c472581
14162cdb2d6
15c7053dac
hex7ef9fffc

2130313212 has 36 divisors (see below), whose sum is σ = 5668379080. Its totient is φ = 672730272.

The previous prime is 2130313201. The next prime is 2130313247. The reversal of 2130313212 is 2123130312.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1556563 + ... + 1557930.

Almost surely, 22130313212 is an apocalyptic number.

It is an amenable number.

2130313212 is an abundant number, since it is smaller than the sum of its proper divisors (3538065868).

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

2130313212 is a wasteful number, since it uses less digits than its factorization.

2130313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114522 (or 3114517 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2130313212 is about 46155.3161835124. The cubic root of 2130313212 is about 1286.7114144400.

Adding to 2130313212 its reverse (2123130312), we get a palindrome (4253443524).

The spelling of 2130313212 in words is "two billion, one hundred thirty million, three hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 3114493 6228986 9343479 12457972 18686958 28030437 37373916 56060874 59175367 112121748 118350734 177526101 236701468 355052202 532578303 710104404 1065156606 2130313212