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121296207 = 3172378357
BaseRepresentation
bin1110011101011…
…01010101001111
322110020111010010
413032231111033
5222022434312
620011444303
73002000154
oct716552517
9273214103
10121296207
11625176aa
1234756693
131c18bc06
141217622b
15a9ae93c
hex73ad54f

121296207 has 8 divisors (see below), whose sum is σ = 171241776. Its totient is φ = 76107392.

The previous prime is 121296193. The next prime is 121296221. The reversal of 121296207 is 702692121.

It is an interprime number because it is at equal distance from previous prime (121296193) and next prime (121296221).

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 121296207 - 24 = 121296191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121296257) 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 7 ways as a sum of consecutive naturals, for example, 1189128 + ... + 1189229.

It is an arithmetic number, because the mean of its divisors is an integer number (21405222).

Almost surely, 2121296207 is an apocalyptic number.

121296207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

121296207 is a deficient number, since it is larger than the sum of its proper divisors (49945569).

121296207 is a wasteful number, since it uses less digits than its factorization.

121296207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378377.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 121296207 is about 11013.4557247033. The cubic root of 121296207 is about 495.0120148089.

It can be divided in two parts, 12129 and 6207, that added together give a triangular number (18336 = T191).

The spelling of 121296207 in words is "one hundred twenty-one million, two hundred ninety-six thousand, two hundred seven".

Divisors: 1 3 17 51 2378357 7135071 40432069 121296207