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121750201 = 2312741681
BaseRepresentation
bin1110100000111…
…00001010111001
322111002112212201
413100130022321
5222132001301
620025310201
73005600566
oct720341271
9274075781
10121750201
11627a7801
1234935361
131c2ba751
141225386d
15aa4e201
hex741c2b9

121750201 has 8 divisors (see below), whose sum is σ = 128047104. Its totient is φ = 115536960.

The previous prime is 121750199. The next prime is 121750219. The reversal of 121750201 is 102057121.

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 121750201 - 21 = 121750199 is a prime.

It is a super-2 number, since 2×1217502012 = 29646222887080802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121750241) 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, 17920 + ... + 23761.

It is an arithmetic number, because the mean of its divisors is an integer number (16005888).

Almost surely, 2121750201 is an apocalyptic number.

It is an amenable number.

121750201 is a deficient number, since it is larger than the sum of its proper divisors (6296903).

121750201 is a wasteful number, since it uses less digits than its factorization.

121750201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41831.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 121750201 is about 11034.0473535326. The cubic root of 121750201 is about 495.6288318044.

The spelling of 121750201 in words is "one hundred twenty-one million, seven hundred fifty thousand, two hundred one".

Divisors: 1 23 127 2921 41681 958663 5293487 121750201