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121230988 = 2297312451
BaseRepresentation
bin1110011100111…
…01011010001100
322110010011122121
413032131122030
5222013342423
620010222324
73001306054
oct716353214
9273104577
10121230988
11624826aa
12347249a4
131c168318
141215a564
15a99a45d
hex739d68c

121230988 has 12 divisors (see below), whose sum is σ = 214342072. Its totient is φ = 59990400.

The previous prime is 121230979. The next prime is 121231003. The reversal of 121230988 is 889032121.

It is a super-2 number, since 2×1212309882 = 29393904902912288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 155838 + ... + 156613.

Almost surely, 2121230988 is an apocalyptic number.

It is an amenable number.

121230988 is a deficient number, since it is larger than the sum of its proper divisors (93111084).

121230988 is a wasteful number, since it uses less digits than its factorization.

121230988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312552 (or 312550 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 121230988 is about 11010.4944484796. The cubic root of 121230988 is about 494.9232789301.

The spelling of 121230988 in words is "one hundred twenty-one million, two hundred thirty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 97 194 388 312451 624902 1249804 30307747 60615494 121230988