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120430021345 = 5612111871339
BaseRepresentation
bin111000000101000110…
…0000100101011100001
3102111211222022221212221
41300022030010223201
53433120041140340
6131154053151041
711462240201644
oct1601214045341
9374758287787
10120430021345
114708a675567
121b40b92b481
13b48330a57a
145b864c3a5b
1531ecae944a
hex1c0a304ae1

120430021345 has 16 divisors (see below), whose sum is σ = 147581357760. Its totient is φ = 94315435200.

The previous prime is 120430021337. The next prime is 120430021357. The reversal of 120430021345 is 543120034021.

It is not a de Polignac number, because 120430021345 - 23 = 120430021337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871315 + ... + 1000024.

It is an arithmetic number, because the mean of its divisors is an integer number (9223834860).

Almost surely, 2120430021345 is an apocalyptic number.

It is an amenable number.

120430021345 is a deficient number, since it is larger than the sum of its proper divisors (27151336415).

120430021345 is a wasteful number, since it uses less digits than its factorization.

120430021345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871616.

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

Adding to 120430021345 its reverse (543120034021), we get a palindrome (663550055366).

The spelling of 120430021345 in words is "one hundred twenty billion, four hundred thirty million, twenty-one thousand, three hundred forty-five".

Divisors: 1 5 61 211 305 1055 12871 64355 1871339 9356695 114151679 394852529 570758395 1974262645 24086004269 120430021345