Search a number
-
+
97220217 = 332406739
BaseRepresentation
bin1011100101101…
…11011001111001
320202221022001210
411302313121321
5144342021332
613351433333
72260233603
oct562673171
9222838053
1097220217
114a972a96
1228685849
13171ac473
14ccaa173
158805ecc
hex5cb7679

97220217 has 4 divisors (see below), whose sum is σ = 129626960. Its totient is φ = 64813476.

The previous prime is 97220213. The next prime is 97220231. The reversal of 97220217 is 71202279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 97220217 - 22 = 97220213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16203367 + ... + 16203372.

It is an arithmetic number, because the mean of its divisors is an integer number (32406740).

Almost surely, 297220217 is an apocalyptic number.

It is an amenable number.

97220217 is a deficient number, since it is larger than the sum of its proper divisors (32406743).

97220217 is a wasteful number, since it uses less digits than its factorization.

97220217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32406742.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 97220217 is about 9860.0312879828. The cubic root of 97220217 is about 459.8175347526.

The spelling of 97220217 in words is "ninety-seven million, two hundred twenty thousand, two hundred seventeen".

Divisors: 1 3 32406739 97220217