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97421200 = 2452243553
BaseRepresentation
bin1011100111010…
…00011110010000
320210022111202121
411303220132100
5144414434300
613400024024
72262031552
oct563503620
9223274677
1097421200
114aa9aa98
1228762014
131724caa6
14cd1d4d2
15884581a
hex5ce8790

97421200 has 30 divisors (see below), whose sum is σ = 234055394. Its totient is φ = 38968320.

The previous prime is 97421171. The next prime is 97421239. The reversal of 97421200 is 212479.

It can be written as a sum of positive squares in 3 ways, for example, as 4260096 + 93161104 = 2064^2 + 9652^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121377 + ... + 122176.

Almost surely, 297421200 is an apocalyptic number.

It is an amenable number.

97421200 is an abundant number, since it is smaller than the sum of its proper divisors (136634194).

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

97421200 is a wasteful number, since it uses less digits than its factorization.

97421200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243571 (or 243560 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 97421200 is about 9870.2178294098. The cubic root of 97421200 is about 460.1341763595.

Adding to 97421200 its reverse (212479), we get a palindrome (97633679).

The spelling of 97421200 in words is "ninety-seven million, four hundred twenty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 243553 487106 974212 1217765 1948424 2435530 3896848 4871060 6088825 9742120 12177650 19484240 24355300 48710600 97421200