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19112106924 = 2233321755009
BaseRepresentation
bin10001110011001010…
…111001101110101100
31211022221210121221000
4101303022321232230
5303120144410144
612440250440300
71244421141231
oct216312715654
954287717830
1019112106924
118118316899
123854733090
131a5775cb11
14cd43db788
1576cd31769
hex4732b9bac

19112106924 has 48 divisors (see below), whose sum is σ = 49566210400. Its totient is φ = 6368606208.

The previous prime is 19112106919. The next prime is 19112106943. The reversal of 19112106924 is 42960121191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319932 + ... + 374940.

Almost surely, 219112106924 is an apocalyptic number.

It is an amenable number.

19112106924 is an abundant number, since it is smaller than the sum of its proper divisors (30454103476).

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

19112106924 is a wasteful number, since it uses less digits than its factorization.

19112106924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58239 (or 58231 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 19112106924 in words is "nineteen billion, one hundred twelve million, one hundred six thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 3217 6434 9651 12868 19302 28953 38604 55009 57906 86859 110018 115812 165027 173718 220036 330054 347436 495081 660108 990162 1485243 1980324 2970486 5940972 176963953 353927906 530891859 707855812 1061783718 1592675577 2123567436 3185351154 4778026731 6370702308 9556053462 19112106924