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72030007 = 719541579
BaseRepresentation
bin1000100101100…
…01011100110111
312000112111121001
410102301130313
5121414430012
611051504131
71533150010
oct422613467
9160474531
1072030007
1137728235
1220158047
1311bcc80a
1497d0007
1564cc357
hex44b1737

72030007 has 8 divisors (see below), whose sum is σ = 86652800. Its totient is φ = 58490424.

The previous prime is 72029987. The next prime is 72030011. The reversal of 72030007 is 70003027.

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

It is a cyclic number.

It is not a de Polignac number, because 72030007 - 211 = 72027959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72030017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270657 + ... + 270922.

It is an arithmetic number, because the mean of its divisors is an integer number (10831600).

Almost surely, 272030007 is an apocalyptic number.

72030007 is a deficient number, since it is larger than the sum of its proper divisors (14622793).

72030007 is a wasteful number, since it uses less digits than its factorization.

72030007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541605.

The product of its (nonzero) digits is 294, while the sum is 19.

The square root of 72030007 is about 8487.0493694805. The cubic root of 72030007 is about 416.0745501717.

The spelling of 72030007 in words is "seventy-two million, thirty thousand, seven".

Divisors: 1 7 19 133 541579 3791053 10290001 72030007