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121630700 = 22522774391
BaseRepresentation
bin1110011111111…
…10111111101100
322110212110221202
413033332333230
5222114140300
620022545032
73004562312
oct717767754
9273773852
10121630700
1162725a44
1234898178
131c278239
14122220b2
15aa28ad5
hex73fefec

121630700 has 36 divisors (see below), whose sum is σ = 264951792. Its totient is φ = 48465600.

The previous prime is 121630697. The next prime is 121630711. The reversal of 121630700 is 7036121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25505 + ... + 29895.

It is an arithmetic number, because the mean of its divisors is an integer number (7359772).

Almost surely, 2121630700 is an apocalyptic number.

121630700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121630700 is an abundant number, since it is smaller than the sum of its proper divisors (143321092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121630700 is a wasteful number, since it uses less digits than its factorization.

121630700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 121630700 is about 11028.6309213791. The cubic root of 121630700 is about 495.4666211767.

Adding to 121630700 its reverse (7036121), we get a palindrome (128666821).

The spelling of 121630700 in words is "one hundred twenty-one million, six hundred thirty thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 277 554 1108 1385 2770 4391 5540 6925 8782 13850 17564 21955 27700 43910 87820 109775 219550 439100 1216307 2432614 4865228 6081535 12163070 24326140 30407675 60815350 121630700