Search a number
-
+
2197953071 = 23529718041
BaseRepresentation
bin1000001100000010…
…0001101000101111
312200011211120210022
42003000201220233
514000133444241
61002033432355
7105316202306
oct20300415057
95604746708
102197953071
11a28761746
1251410b6bb
13290495a62
1416bca743d
15cce6554b
hex83021a2f

2197953071 has 8 divisors (see below), whose sum is σ = 2294076384. Its totient is φ = 2101876480.

The previous prime is 2197953067. The next prime is 2197953077. The reversal of 2197953071 is 1703597912.

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 2197953071 - 22 = 2197953067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197953077) 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, 112811 + ... + 130851.

It is an arithmetic number, because the mean of its divisors is an integer number (286759548).

Almost surely, 22197953071 is an apocalyptic number.

2197953071 is a deficient number, since it is larger than the sum of its proper divisors (96123313).

2197953071 is a wasteful number, since it uses less digits than its factorization.

2197953071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23361.

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 2197953071 is about 46882.3321838835. The cubic root of 2197953071 is about 1300.1879552697.

The spelling of 2197953071 in words is "two billion, one hundred ninety-seven million, nine hundred fifty-three thousand, seventy-one".

Divisors: 1 23 5297 18041 121831 414943 95563177 2197953071