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47050505 = 519348757
BaseRepresentation
bin1011001101111…
…0111100001001
310021112102011022
42303132330021
544021104010
64400242225
71110631325
oct263367411
9107472138
1047050505
1124616817
1213910375
139994a48
14636a985
1541e5d55
hex2cdef09

47050505 has 8 divisors (see below), whose sum is σ = 56754312. Its totient is φ = 37444608.

The previous prime is 47050489. The next prime is 47050519. The reversal of 47050505 is 50505074.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 47045881 = 68^2 + 6859^2 .

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 47050505 - 24 = 47050489 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23414 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (7094289).

Almost surely, 247050505 is an apocalyptic number.

It is an amenable number.

47050505 is a deficient number, since it is larger than the sum of its proper divisors (9703807).

47050505 is a wasteful number, since it uses less digits than its factorization.

47050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48955.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 47050505 is about 6859.3370670933. The cubic root of 47050505 is about 361.0118268187.

Adding to 47050505 its reverse (50505074), we get a palindrome (97555579).

The spelling of 47050505 in words is "forty-seven million, fifty thousand, five hundred five".

Divisors: 1 5 193 965 48757 243785 9410101 47050505