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121030743 = 367602143
BaseRepresentation
bin1110011011011…
…00100001010111
322102201222222010
413031230201113
5221440440433
620002035303
72666513211
oct715544127
9272658863
10121030743
1162356209
1234648b33
131c0c8132
14121075b1
15a95ae63
hex736c857

121030743 has 8 divisors (see below), whose sum is σ = 163783168. Its totient is φ = 79482744.

The previous prime is 121030739. The next prime is 121030751. The reversal of 121030743 is 347030121.

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

It is not a de Polignac number, because 121030743 - 22 = 121030739 is a prime.

It is a super-2 number, since 2×1210307432 = 29296881502264098, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121030753) 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, 300871 + ... + 301272.

It is an arithmetic number, because the mean of its divisors is an integer number (20472896).

Almost surely, 2121030743 is an apocalyptic number.

121030743 is a deficient number, since it is larger than the sum of its proper divisors (42752425).

121030743 is an equidigital number, since it uses as much as digits as its factorization.

121030743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602213.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 121030743 is about 11001.3973203407. The cubic root of 121030743 is about 494.6506299144.

Adding to 121030743 its reverse (347030121), we get a palindrome (468060864).

The spelling of 121030743 in words is "one hundred twenty-one million, thirty thousand, seven hundred forty-three".

Divisors: 1 3 67 201 602143 1806429 40343581 121030743