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72048078 = 2324002671
BaseRepresentation
bin1000100101101…
…01110111001110
312000120102101100
410102311313032
5121421014303
611052123530
71533253464
oct422656716
9160512340
1072048078
113773a873
12201665a6
1311c07acb
1497d6834
1564d28a3
hex44b5dce

72048078 has 12 divisors (see below), whose sum is σ = 156104208. Its totient is φ = 24016020.

The previous prime is 72048073. The next prime is 72048083. The reversal of 72048078 is 87084027.

It is an interprime number because it is at equal distance from previous prime (72048073) and next prime (72048083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72048073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2001318 + ... + 2001353.

It is an arithmetic number, because the mean of its divisors is an integer number (13008684).

Almost surely, 272048078 is an apocalyptic number.

72048078 is an abundant number, since it is smaller than the sum of its proper divisors (84056130).

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

72048078 is a wasteful number, since it uses less digits than its factorization.

72048078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002679 (or 4002676 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 72048078 is about 8488.1139247774. The cubic root of 72048078 is about 416.1093424054.

The spelling of 72048078 in words is "seventy-two million, forty-eight thousand, seventy-eight".

Divisors: 1 2 3 6 9 18 4002671 8005342 12008013 24016026 36024039 72048078