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454172605140 = 223533712245489
BaseRepresentation
bin1101001101111101100…
…10111111101011010100
31121102022001212211210210
412212332302333223110
524420121141331030
6544351035045420
744545551306222
oct6467662775324
91542261784723
10454172605140
11165682660451
12740315a0870
1333a9c9b4797
1417da6b37b12
15bc3275abb0
hex69becbfad4

454172605140 has 48 divisors (see below), whose sum is σ = 1272061103040. Its totient is φ = 121076712960.

The previous prime is 454172605129. The next prime is 454172605153. The reversal of 454172605140 is 41506271454.

It is a congruent number.

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, 920485 + ... + 1325004.

It is an arithmetic number, because the mean of its divisors is an integer number (26501272980).

Almost surely, 2454172605140 is an apocalyptic number.

It is an amenable number.

454172605140 is an abundant number, since it is smaller than the sum of its proper divisors (817888497900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454172605140 is a wasteful number, since it uses less digits than its factorization.

454172605140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248872 (or 2248870 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

Adding to 454172605140 its reverse (41506271454), we get a palindrome (495678876594).

The spelling of 454172605140 in words is "four hundred fifty-four billion, one hundred seventy-two million, six hundred five thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3371 6742 10113 13484 16855 20226 33710 40452 50565 67420 101130 202260 2245489 4490978 6736467 8981956 11227445 13472934 22454890 26945868 33682335 44909780 67364670 134729340 7569543419 15139086838 22708630257 30278173676 37847717095 45417260514 75695434190 90834521028 113543151285 151390868380 227086302570 454172605140