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49146968080 = 2457791110917
BaseRepresentation
bin101101110001011000…
…110011100000010000
311200212010200122211001
4231301120303200100
51301123110434310
634324450031344
73356623223140
oct556130634020
9150763618731
1049146968080
11199302005a1
129637278554
13483310c702
14254331c920
151429a4493a
hexb71633810

49146968080 has 80 divisors (see below), whose sum is σ = 132243678720. Its totient is φ = 16637078016.

The previous prime is 49146968071. The next prime is 49146968083. The reversal of 49146968080 is 8086964194.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (49146968083) 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, 511219 + ... + 599698.

It is an arithmetic number, because the mean of its divisors is an integer number (1653045984).

Almost surely, 249146968080 is an apocalyptic number.

49146968080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49146968080 is an abundant number, since it is smaller than the sum of its proper divisors (83096710640).

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

49146968080 is a wasteful number, since it uses less digits than its factorization.

49146968080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111016 (or 1111010 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 49146968080 in words is "forty-nine billion, one hundred forty-six million, nine hundred sixty-eight thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 79 80 112 140 158 280 316 395 553 560 632 790 1106 1264 1580 2212 2765 3160 4424 5530 6320 8848 11060 22120 44240 1110917 2221834 4443668 5554585 7776419 8887336 11109170 15552838 17774672 22218340 31105676 38882095 44436680 62211352 77764190 87762443 88873360 124422704 155528380 175524886 311056760 351049772 438812215 614337101 622113520 702099544 877624430 1228674202 1404199088 1755248860 2457348404 3071685505 3510497720 4914696808 6143371010 7020995440 9829393616 12286742020 24573484040 49146968080