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120400143141 = 31918127143063
BaseRepresentation
bin111000000100001101…
…0000110001100100101
3102111202220002222200210
41300020122012030211
53433034414040031
6131151104530033
711461425221325
oct1601032061445
9374686088623
10120400143141
1147074818633
121b401920919
13b47a078b65
145b82547285
1531ea196746
hex1c08686325

120400143141 has 32 divisors (see below), whose sum is σ = 170547220480. Its totient is φ = 75341275200.

The previous prime is 120400143107. The next prime is 120400143203. The reversal of 120400143141 is 141341004021.

It is not a de Polignac number, because 120400143141 - 223 = 120391754533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120400143841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2774376 + ... + 2817438.

It is an arithmetic number, because the mean of its divisors is an integer number (5329600640).

Almost surely, 2120400143141 is an apocalyptic number.

It is an amenable number.

120400143141 is a deficient number, since it is larger than the sum of its proper divisors (50147077339).

120400143141 is a wasteful number, since it uses less digits than its factorization.

120400143141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43537.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 120400143141 its reverse (141341004021), we get a palindrome (261741147162).

The spelling of 120400143141 in words is "one hundred twenty billion, four hundred million, one hundred forty-three thousand, one hundred forty-one".

Divisors: 1 3 19 57 181 271 543 813 3439 5149 10317 15447 43063 49051 129189 147153 818197 931969 2454591 2795907 7794403 11670073 23383209 35010219 148093657 221731387 444280971 665194161 2112283213 6336849639 40133381047 120400143141