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9101997324 = 2233779257593
BaseRepresentation
bin10000111101000010…
…10111010100001100
3212111100000101001000
420132201113110030
5122120102403244
64103103220300
7441361462230
oct103641272414
925440011030
109101997324
113950927342
1219202a7690
13b20942c44
14624ba65c0
15384128169
hex21e85750c

9101997324 has 192 divisors, whose sum is σ = 27462758400. Its totient is φ = 2553348096.

The previous prime is 9101997323. The next prime is 9101997343. The reversal of 9101997324 is 4237991019.

It is a super-2 number, since 2×91019973242 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9101997324.

It is not an unprimeable number, because it can be changed into a prime (9101997323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15348772 + ... + 15349364.

It is an arithmetic number, because the mean of its divisors is an integer number (143035200).

Almost surely, 29101997324 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 9101997324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13731379200).

9101997324 is an abundant number, since it is smaller than the sum of its proper divisors (18360761076).

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

9101997324 is a wasteful number, since it uses less digits than its factorization.

9101997324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9101997324 is about 95404.3883896333. The cubic root of 9101997324 is about 2087.9122122557.

The spelling of 9101997324 in words is "nine billion, one hundred one million, nine hundred ninety-seven thousand, three hundred twenty-four".