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2197463953 = 23870710973
BaseRepresentation
bin1000001011111010…
…1010001110010001
312200010220201211211
42002332222032101
514000022321303
61002015140121
7105312064306
oct20276521621
95603821754
102197463953
11a28458213
12513b14641
13290354239
1416bbbb0ad
15ccdba66d
hex82faa391

2197463953 has 8 divisors (see below), whose sum is σ = 2293478208. Its totient is φ = 2101489104.

The previous prime is 2197463887. The next prime is 2197463963. The reversal of 2197463953 is 3593647912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2197463953 - 213 = 2197455761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2197463897 and 2197463906.

It is not an unprimeable number, because it can be changed into a prime (2197463963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194775 + ... + 205747.

It is an arithmetic number, because the mean of its divisors is an integer number (286684776).

Almost surely, 22197463953 is an apocalyptic number.

2197463953 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2197463953 is a deficient number, since it is larger than the sum of its proper divisors (96014255).

2197463953 is a wasteful number, since it uses less digits than its factorization.

2197463953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19703.

The product of its digits is 1224720, while the sum is 49.

The square root of 2197463953 is about 46877.1154509319. The cubic root of 2197463953 is about 1300.0915030267.

The spelling of 2197463953 in words is "two billion, one hundred ninety-seven million, four hundred sixty-three thousand, nine hundred fifty-three".

Divisors: 1 23 8707 10973 200261 252379 95541911 2197463953