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72335053 = 725214099
BaseRepresentation
bin1000100111110…
…11111011001101
312001010000001001
410103323323031
5122004210203
611102220301
71535560240
oct423737315
9161100031
1072335053
113791643a
1220284691
1311ca860b
14986d257
15653c91d
hex44fbecd

72335053 has 8 divisors (see below), whose sum is σ = 82721600. Its totient is φ = 61961760.

The previous prime is 72335027. The next prime is 72335057. The reversal of 72335053 is 35053327.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-72335053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72335057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15598 + ... + 19696.

It is an arithmetic number, because the mean of its divisors is an integer number (10340200).

Almost surely, 272335053 is an apocalyptic number.

It is an amenable number.

72335053 is a deficient number, since it is larger than the sum of its proper divisors (10386547).

72335053 is a wasteful number, since it uses less digits than its factorization.

72335053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627.

The product of its (nonzero) digits is 9450, while the sum is 28.

The square root of 72335053 is about 8505.0016460904. The cubic root of 72335053 is about 416.6610794629.

Subtracting from 72335053 its sum of digits (28), we obtain a square (72335025 = 85052).

The spelling of 72335053 in words is "seventy-two million, three hundred thirty-five thousand, fifty-three".

Divisors: 1 7 2521 4099 17647 28693 10333579 72335053