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97230240 = 2533571317
BaseRepresentation
bin1011100101110…
…01110110100000
320202221210211000
411302321312200
5144342331430
613351552000
72260305042
oct562716640
9222853730
1097230240
114a97a578
122868b600
13171b3bb3
14ccada92
158808e60
hex5cb9da0

97230240 has 192 divisors, whose sum is σ = 346187520. Its totient is φ = 25482240.

The previous prime is 97230227. The next prime is 97230241. The reversal of 97230240 is 4203279.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (97230241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306562 + ... + 306878.

It is an arithmetic number, because the mean of its divisors is an integer number (1803060).

Almost surely, 297230240 is an apocalyptic number.

97230240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97230240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173093760).

97230240 is an abundant number, since it is smaller than the sum of its proper divisors (248957280).

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

97230240 is a wasteful number, since it uses less digits than its factorization.

97230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 97230240 is about 9860.5395389908. The cubic root of 97230240 is about 459.8333359680.

The spelling of 97230240 in words is "ninety-seven million, two hundred thirty thousand, two hundred forty".