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72074604 = 22371376263
BaseRepresentation
bin1000100101111…
…00010101101100
312000121202202210
410102330111230
5121422341404
611052450420
71533424020
oct422742554
9160552683
1072074604
1137758798
1220179a10
1311c16bc4
149802380
1564da689
hex44bc56c

72074604 has 48 divisors (see below), whose sum is σ = 193632768. Its totient is φ = 20439168.

The previous prime is 72074591. The next prime is 72074609. The reversal of 72074604 is 40647027.

It is not an unprimeable number, because it can be changed into a prime (72074609) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8377 + ... + 14639.

It is an arithmetic number, because the mean of its divisors is an integer number (4034016).

Almost surely, 272074604 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 72074604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96816384).

72074604 is an abundant number, since it is smaller than the sum of its proper divisors (121558164).

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

72074604 is a wasteful number, since it uses less digits than its factorization.

72074604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414 (or 6412 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 72074604 is about 8489.6763189182. The cubic root of 72074604 is about 416.1604025789.

It can be divided in two parts, 7207 and 4604, that added together give a palindrome (11811).

The spelling of 72074604 in words is "seventy-two million, seventy-four thousand, six hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 137 274 411 548 822 959 1644 1918 2877 3836 5754 6263 11508 12526 18789 25052 37578 43841 75156 87682 131523 175364 263046 526092 858031 1716062 2574093 3432124 5148186 6006217 10296372 12012434 18018651 24024868 36037302 72074604