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120404143 = 297158477
BaseRepresentation
bin1110010110100…
…11100010101111
322101120011102201
413023103202233
5221310413033
615540402331
72661263326
oct713234257
9271504381
10120404143
1161a68462
12343a63a7
131bc38b72
1411dc30bd
15a88547d
hex72d38af

120404143 has 8 divisors (see below), whose sum is σ = 126312480. Its totient is φ = 114612960.

The previous prime is 120404129. The next prime is 120404147. The reversal of 120404143 is 341404021.

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 120404143 - 217 = 120273071 is a prime.

It is a super-3 number, since 3×1204041433 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120404143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120404147) 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, 27180 + ... + 31297.

It is an arithmetic number, because the mean of its divisors is an integer number (15789060).

Almost surely, 2120404143 is an apocalyptic number.

120404143 is a deficient number, since it is larger than the sum of its proper divisors (5908337).

120404143 is an equidigital number, since it uses as much as digits as its factorization.

120404143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58577.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 120404143 is about 10972.8821646822. The cubic root of 120404143 is about 493.7955179315.

Adding to 120404143 its reverse (341404021), we get a palindrome (461808164).

The spelling of 120404143 in words is "one hundred twenty million, four hundred four thousand, one hundred forty-three".

Divisors: 1 29 71 2059 58477 1695833 4151867 120404143