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69628741 = 713765151
BaseRepresentation
bin1000010011001…
…11001101000101
311212000111200021
410021213031011
5120311104431
610524215141
71503556150
oct411471505
9155014607
1069628741
1136338116
121b39a4b1
131156b850
149366c97
1561a5b11
hex4267345

69628741 has 8 divisors (see below), whose sum is σ = 85697024. Its totient is φ = 55090800.

The previous prime is 69628729. The next prime is 69628771. The reversal of 69628741 is 14782696.

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 69628741 - 213 = 69620549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69628771) 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, 382485 + ... + 382666.

It is an arithmetic number, because the mean of its divisors is an integer number (10712128).

Almost surely, 269628741 is an apocalyptic number.

It is an amenable number.

69628741 is a deficient number, since it is larger than the sum of its proper divisors (16068283).

69628741 is a wasteful number, since it uses less digits than its factorization.

69628741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765171.

The product of its digits is 145152, while the sum is 43.

The square root of 69628741 is about 8344.3837998980. The cubic root of 69628741 is about 411.3986360483.

The spelling of 69628741 in words is "sixty-nine million, six hundred twenty-eight thousand, seven hundred forty-one".

Divisors: 1 7 13 91 765151 5356057 9946963 69628741