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97170161 = 11191513079
BaseRepresentation
bin1011100101010…
…11001011110001
320202211202101212
411302223023301
5144333421121
613350405505
72256634634
oct562531361
9222752355
1097170161
114a939420
1228660895
131719274a
14cc95c1b
1587e625b
hex5cab2f1

97170161 has 16 divisors (see below), whose sum is σ = 112358400. Its totient is φ = 83106000.

The previous prime is 97170149. The next prime is 97170163. The reversal of 97170161 is 16107179.

It is a de Polignac number, because none of the positive numbers 2k-97170161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97170163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30020 + ... + 33098.

It is an arithmetic number, because the mean of its divisors is an integer number (7022400).

Almost surely, 297170161 is an apocalyptic number.

It is an amenable number.

97170161 is a deficient number, since it is larger than the sum of its proper divisors (15188239).

97170161 is a wasteful number, since it uses less digits than its factorization.

97170161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 97170161 is about 9857.4926325106. The cubic root of 97170161 is about 459.7386054292.

The spelling of 97170161 in words is "ninety-seven million, one hundred seventy thousand, one hundred sixty-one".

Divisors: 1 11 19 151 209 1661 2869 3079 31559 33869 58501 464929 643511 5114219 8833651 97170161