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15749670495980 = 2254119206915239
BaseRepresentation
bin1110010100110000000110…
…0000111110011011101100
32001202122122121122102001202
43211030001200332123230
54031020311121332410
653255144310025032
73213606342234551
oct345140140763354
961678577572052
1015749670495980
115022441446a53
121924484948178
138a325909b335
143c6406856a28
151c4a421c5ca5
hexe530183e6ec

15749670495980 has 24 divisors (see below), whose sum is σ = 33880998483360. Its totient is φ = 6146212876160.

The previous prime is 15749670495971. The next prime is 15749670495983. The reversal of 15749670495980 is 8959407694751.

It is a junction number, because it is equal to n+sod(n) for n = 15749670495898 and 15749670495907.

It is not an unprimeable number, because it can be changed into a prime (15749670495983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9603456800 + ... + 9603458439.

It is an arithmetic number, because the mean of its divisors is an integer number (1411708270140).

Almost surely, 215749670495980 is an apocalyptic number.

15749670495980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15749670495980 is an abundant number, since it is smaller than the sum of its proper divisors (18131327987380).

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

15749670495980 is a wasteful number, since it uses less digits than its factorization.

15749670495980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19206915289 (or 19206915287 counting only the distinct ones).

The product of its (nonzero) digits is 685843200, while the sum is 74.

The spelling of 15749670495980 in words is "fifteen trillion, seven hundred forty-nine billion, six hundred seventy million, four hundred ninety-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 19206915239 38413830478 76827660956 96034576195 192069152390 384138304780 787483524799 1574967049598 3149934099196 3937417623995 7874835247990 15749670495980