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72371056 = 244523191
BaseRepresentation
bin1000101000001…
…00101101110000
312001011211102111
410110010231300
5122011333211
611103055104
71536100222
oct424045560
9161154374
1072371056
113794049a
12202a1494
1311cbbb14
14987c412
156548421
hex4504b70

72371056 has 10 divisors (see below), whose sum is σ = 140218952. Its totient is φ = 36185520.

The previous prime is 72371053. The next prime is 72371063. The reversal of 72371056 is 65017327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72371053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261580 + ... + 2261611.

Almost surely, 272371056 is an apocalyptic number.

It is an amenable number.

72371056 is a deficient number, since it is larger than the sum of its proper divisors (67847896).

72371056 is a wasteful number, since it uses less digits than its factorization.

72371056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523199 (or 4523193 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 72371056 is about 8507.1179608608. The cubic root of 72371056 is about 416.7301956111.

The spelling of 72371056 in words is "seventy-two million, three hundred seventy-one thousand, fifty-six".

Divisors: 1 2 4 8 16 4523191 9046382 18092764 36185528 72371056