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2111302072 = 231123992069
BaseRepresentation
bin111110111010111…
…1110100110111000
312110010210020222001
41331311332212320
513310443131242
6545300310344
7103214525425
oct17565764670
95403706861
102111302072
11993858550
124ab0a23b4
13278547289
1416058cd4c
15c554aeb7
hex7dd7e9b8

2111302072 has 16 divisors (see below), whose sum is σ = 4318572600. Its totient is φ = 959682720.

The previous prime is 2111302013. The next prime is 2111302073. The reversal of 2111302072 is 2702031112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111302073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11995947 + ... + 11996122.

Almost surely, 22111302072 is an apocalyptic number.

2111302072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111302072 is an abundant number, since it is smaller than the sum of its proper divisors (2207270528).

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

2111302072 is a wasteful number, since it uses less digits than its factorization.

2111302072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23992086 (or 23992082 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2111302072 is about 45948.9071904871. The cubic root of 2111302072 is about 1282.8723889013.

Adding to 2111302072 its reverse (2702031112), we get a palindrome (4813333184).

The spelling of 2111302072 in words is "two billion, one hundred eleven million, three hundred two thousand, seventy-two".

Divisors: 1 2 4 8 11 22 44 88 23992069 47984138 95968276 191936552 263912759 527825518 1055651036 2111302072