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121230986 = 2206929297
BaseRepresentation
bin1110011100111…
…01011010001010
322110010011122112
413032131122022
5222013342421
620010222322
73001306052
oct716353212
9273104575
10121230986
11624826a8
12347249a2
131c168316
141215a562
15a99a45b
hex739d68a

121230986 has 8 divisors (see below), whose sum is σ = 181940580. Its totient is φ = 60584128.

The previous prime is 121230979. The next prime is 121231003. The reversal of 121230986 is 689032121.

It can be written as a sum of positive squares in 2 ways, for example, as 120318961 + 912025 = 10969^2 + 955^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10511 + ... + 18786.

Almost surely, 2121230986 is an apocalyptic number.

121230986 is a deficient number, since it is larger than the sum of its proper divisors (60709594).

121230986 is a wasteful number, since it uses less digits than its factorization.

121230986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31368.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 121230986 is about 11010.4943576572. The cubic root of 121230986 is about 494.9232762085.

The spelling of 121230986 in words is "one hundred twenty-one million, two hundred thirty thousand, nine hundred eighty-six".

Divisors: 1 2 2069 4138 29297 58594 60615493 121230986