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122161101 = 361667547
BaseRepresentation
bin1110100100000…
…00011111001101
322111212102112020
413102000133031
5222233123401
620042200353
73012231546
oct722003715
9274772466
10122161101
1162a58497
1234ab30b9
131c40279a
141231d4cd
15aad0d36
hex74807cd

122161101 has 8 divisors (see below), whose sum is σ = 165551904. Its totient is φ = 80105520.

The previous prime is 122161069. The next prime is 122161147. The reversal of 122161101 is 101161221.

It is a happy number.

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

It is not a de Polignac number, because 122161101 - 25 = 122161069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122163101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333591 + ... + 333956.

It is an arithmetic number, because the mean of its divisors is an integer number (20693988).

Almost surely, 2122161101 is an apocalyptic number.

It is an amenable number.

122161101 is a deficient number, since it is larger than the sum of its proper divisors (43390803).

122161101 is an equidigital number, since it uses as much as digits as its factorization.

122161101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667611.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 122161101 is about 11052.6513108846. The cubic root of 122161101 is about 496.1857787531.

The spelling of 122161101 in words is "one hundred twenty-two million, one hundred sixty-one thousand, one hundred one".

Divisors: 1 3 61 183 667547 2002641 40720367 122161101