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12993472222650 = 23352174113808887
BaseRepresentation
bin1011110100010100011101…
…0010111101010110111010
31201000011102102100002012000
42331011013102331112322
53200341112342111100
643345041351401430
72510514232405503
oct275050722752672
951004372302160
1012993472222650
11415a55636aa87
12155a27b683276
1373338246017a
1432cc5d0adbaa
15177ecb54a900
hexbd1474bd5ba

12993472222650 has 192 divisors, whose sum is σ = 38835011900160. Its totient is φ = 3181567334400.

The previous prime is 12993472222649. The next prime is 12993472222697. The reversal of 12993472222650 is 5622227439921.

12993472222650 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 347 + 22 + 226 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5963494 + ... + 7845393.

It is an arithmetic number, because the mean of its divisors is an integer number (202265686980).

Almost surely, 212993472222650 is an apocalyptic number.

12993472222650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12993472222650 is an abundant number, since it is smaller than the sum of its proper divisors (25841539677510).

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

12993472222650 is a wasteful number, since it uses less digits than its factorization.

12993472222650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13808966 (or 13808955 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 12993472222650 in words is "twelve trillion, nine hundred ninety-three billion, four hundred seventy-two million, two hundred twenty-two thousand, six hundred fifty".