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72025799 = 199736067
BaseRepresentation
bin1000100101100…
…00011011000111
312000112021211012
410102300123013
5121414311144
611051432435
71533131516
oct422603307
9160467735
1072025799
113772505a
122015571b
1311bca921
1497cc67d
1564cae9e
hex44b06c7

72025799 has 4 divisors (see below), whose sum is σ = 72063864. Its totient is φ = 71987736.

The previous prime is 72025747. The next prime is 72025813. The reversal of 72025799 is 99752027.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72025799 - 28 = 72025543 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 (72025739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16037 + ... + 20030.

It is an arithmetic number, because the mean of its divisors is an integer number (18015966).

Almost surely, 272025799 is an apocalyptic number.

72025799 is a deficient number, since it is larger than the sum of its proper divisors (38065).

72025799 is a wasteful number, since it uses less digits than its factorization.

72025799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38064.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 72025799 is about 8486.8014587358. The cubic root of 72025799 is about 416.0664476420.

The spelling of 72025799 in words is "seventy-two million, twenty-five thousand, seven hundred ninety-nine".

Divisors: 1 1997 36067 72025799