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121102993 = 1126940927
BaseRepresentation
bin1110011011111…
…10001010010001
322102212200002001
413031332022101
5222000243433
620003354001
73000233644
oct715761221
9272780061
10121102993
11623a5520
1234682901
131c121c9b
1412125a5b
15a97257d
hex737e291

121102993 has 8 divisors (see below), whose sum is σ = 132606720. Its totient is φ = 109681680.

The previous prime is 121102967. The next prime is 121102999. The reversal of 121102993 is 399201121.

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 121102993 - 29 = 121102481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121102999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17505 + ... + 23422.

It is an arithmetic number, because the mean of its divisors is an integer number (16575840).

Almost surely, 2121102993 is an apocalyptic number.

It is an amenable number.

121102993 is a deficient number, since it is larger than the sum of its proper divisors (11503727).

121102993 is a wasteful number, since it uses less digits than its factorization.

121102993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41207.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 121102993 is about 11004.6805042218. The cubic root of 121102993 is about 494.7490385172.

The spelling of 121102993 in words is "one hundred twenty-one million, one hundred two thousand, nine hundred ninety-three".

Divisors: 1 11 269 2959 40927 450197 11009363 121102993