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61098314472 = 23331324140823
BaseRepresentation
bin111000111001101111…
…100100101011101000
312211201001020221222000
4320321233210223220
52000112132030342
644022420531000
74262034050466
oct707157445350
9184631227860
1061098314472
1123a03450a78
12ba11850a60
1359b916a900
142d586b3836
1518c8da444c
hexe39be4ae8

61098314472 has 192 divisors, whose sum is σ = 188263958400. Its totient is φ = 18340508160.

The previous prime is 61098314471. The next prime is 61098314491. The reversal of 61098314472 is 27441389016.

61098314472 is a `hidden beast` number, since 61 + 0 + 98 + 31 + 4 + 472 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61098314471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1476253 + ... + 1517075.

It is an arithmetic number, because the mean of its divisors is an integer number (980541450).

Almost surely, 261098314472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61098314472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94131979200).

61098314472 is an abundant number, since it is smaller than the sum of its proper divisors (127165643928).

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

61098314472 is a wasteful number, since it uses less digits than its factorization.

61098314472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40905 (or 40882 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 61098314472 in words is "sixty-one billion, ninety-eight million, three hundred fourteen thousand, four hundred seventy-two".