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121534750 = 253486139
BaseRepresentation
bin1110011111001…
…11100100011110
322110200121100001
413033213210132
5222103103000
620020524514
73004012501
oct717474436
9273617301
10121534750
116266a947
123485073a
131c24366c
14121d9138
15aa0a46a
hex73e791e

121534750 has 16 divisors (see below), whose sum is σ = 227513520. Its totient is φ = 48613800.

The previous prime is 121534729. The next prime is 121534769. The reversal of 121534750 is 57435121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 242820 + ... + 243319.

It is an arithmetic number, because the mean of its divisors is an integer number (14219595).

Almost surely, 2121534750 is an apocalyptic number.

121534750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121534750 is a deficient number, since it is larger than the sum of its proper divisors (105978770).

121534750 is an equidigital number, since it uses as much as digits as its factorization.

121534750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486156 (or 486146 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 121534750 is about 11024.2800218427. The cubic root of 121534750 is about 495.3363017517.

Adding to 121534750 its reverse (57435121), we get a palindrome (178969871).

The spelling of 121534750 in words is "one hundred twenty-one million, five hundred thirty-four thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 486139 972278 2430695 4861390 12153475 24306950 60767375 121534750