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72240848 = 244515053
BaseRepresentation
bin1000100111001…
…00111011010000
312000221012210222
410103210323100
5121443201343
611100212212
71535015501
oct423447320
9160835728
1072240848
1137861689
122023a068
1311c74784
149846ba8
15651ea68
hex44e4ed0

72240848 has 10 divisors (see below), whose sum is σ = 139966674. Its totient is φ = 36120416.

The previous prime is 72240841. The next prime is 72240853. The reversal of 72240848 is 84804227.

It can be written as a sum of positive squares in only one way, i.e., 36336784 + 35904064 = 6028^2 + 5992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72240841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2257511 + ... + 2257542.

Almost surely, 272240848 is an apocalyptic number.

It is an amenable number.

72240848 is a deficient number, since it is larger than the sum of its proper divisors (67725826).

72240848 is a wasteful number, since it uses less digits than its factorization.

72240848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515061 (or 4515055 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 72240848 is about 8499.4616300093. The cubic root of 72240848 is about 416.4801224332.

The spelling of 72240848 in words is "seventy-two million, two hundred forty thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 4515053 9030106 18060212 36120424 72240848