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97500000 = 2535713
BaseRepresentation
bin1011100111110…
…11101101100000
320210110111212010
411303323231200
5144430000000
613401432520
72262510363
oct563735540
9223414763
1097500000
1150044214
122879b740
1317279910
14cd400da
15885dd50
hex5cfbb60

97500000 has 192 divisors, whose sum is σ = 344530368. Its totient is φ = 24000000.

The previous prime is 97499999. The next prime is 97500061. The reversal of 97500000 is 579.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 97500000.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 650 × 250 × 600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7499994 + ... + 7500006.

It is an arithmetic number, because the mean of its divisors is an integer number (1794429).

Almost surely, 297500000 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 97500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172265184).

97500000 is an abundant number, since it is smaller than the sum of its proper divisors (247030368).

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

97500000 is an frugal number, since it uses more digits than its factorization.

97500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 97500000 is about 9874.2088290657. The cubic root of 97500000 is about 460.2582041258.

Adding to 97500000 its reverse (579), we get a palindrome (97500579).

The spelling of 97500000 in words is "ninety-seven million, five hundred thousand".