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121245433 = 2931134867
BaseRepresentation
bin1110011101000…
…00111011111001
322110010220110121
413032200323321
5222014323213
620010413241
73001366141
oct716407371
9273126417
10121245433
1162492541
1234731221
131c171a7a
1412161921
15a99e88d
hex73a0ef9

121245433 has 8 divisors (see below), whose sum is σ = 129473280. Its totient is φ = 113287440.

The previous prime is 121245427. The next prime is 121245461. The reversal of 121245433 is 334542121.

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 121245433 - 25 = 121245401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121245398 and 121245407.

It is not an unprimeable number, because it can be changed into a prime (121245473) 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, 66535 + ... + 68332.

It is an arithmetic number, because the mean of its divisors is an integer number (16184160).

Almost surely, 2121245433 is an apocalyptic number.

It is an amenable number.

121245433 is a deficient number, since it is larger than the sum of its proper divisors (8227847).

121245433 is a wasteful number, since it uses less digits than its factorization.

121245433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134927.

The product of its digits is 2880, while the sum is 25.

The square root of 121245433 is about 11011.1503940324. The cubic root of 121245433 is about 494.9429352984.

Adding to 121245433 its reverse (334542121), we get a palindrome (455787554).

The spelling of 121245433 in words is "one hundred twenty-one million, two hundred forty-five thousand, four hundred thirty-three".

Divisors: 1 29 31 899 134867 3911143 4180877 121245433