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120144432443 = 7311513666629
BaseRepresentation
bin110111111100100101…
…0101000110100111011
3102111010001221112120012
41233321022220310323
53432023433314233
6131105452052135
711452201553150
oct1577112506473
9374101845505
10120144432443
1146a53444382
121b35016404b
13b4390b7059
145b5a5c2227
1531d29d5548
hex1bf92a8d3b

120144432443 has 16 divisors (see below), whose sum is σ = 142675906560. Its totient is φ = 98998956000.

The previous prime is 120144432389. The next prime is 120144432461. The reversal of 120144432443 is 344234441021.

It is not a de Polignac number, because 120144432443 - 210 = 120144431419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120144431443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800548 + ... + 1866081.

It is an arithmetic number, because the mean of its divisors is an integer number (8917244160).

Almost surely, 2120144432443 is an apocalyptic number.

120144432443 is a deficient number, since it is larger than the sum of its proper divisors (22531474117).

120144432443 is a wasteful number, since it uses less digits than its factorization.

120144432443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666818.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 120144432443 its reverse (344234441021), we get a palindrome (464378873464).

The spelling of 120144432443 in words is "one hundred twenty billion, one hundred forty-four million, four hundred thirty-two thousand, four hundred forty-three".

Divisors: 1 7 31 151 217 1057 4681 32767 3666629 25666403 113665499 553660979 795658493 3875626853 17163490349 120144432443