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100704805 = 5139144899
BaseRepresentation
bin1100000000010…
…10001000100101
321000111100000121
412000022020211
5201240023210
613554241541
72331656005
oct600121045
9230440017
10100704805
1151933013
12298862b1
1317b2c556
14d536005
158c936da
hex600a225

100704805 has 8 divisors (see below), whose sum is σ = 121716000. Its totient is φ = 79983696.

The previous prime is 100704803. The next prime is 100704859. The reversal of 100704805 is 508407001.

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 100704805 - 21 = 100704803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100704805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100704803) 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, 71755 + ... + 73144.

It is an arithmetic number, because the mean of its divisors is an integer number (15214500).

Almost surely, 2100704805 is an apocalyptic number.

It is an amenable number.

100704805 is a deficient number, since it is larger than the sum of its proper divisors (21011195).

100704805 is a wasteful number, since it uses less digits than its factorization.

100704805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145043.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 100704805 is about 10035.1783740998. The cubic root of 100704805 is about 465.2468031187.

The spelling of 100704805 in words is "one hundred million, seven hundred four thousand, eight hundred five".

Divisors: 1 5 139 695 144899 724495 20140961 100704805