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107216705 = 5171261373
BaseRepresentation
bin1100110001111…
…11111101000001
321110202011200002
412120333331001
5204421413310
614350005345
72441220101
oct630777501
9243664602
10107216705
1155580552
122baa6855
131929c54b
141034d201
15962cda5
hex663ff41

107216705 has 8 divisors (see below), whose sum is σ = 136228392. Its totient is φ = 80727808.

The previous prime is 107216689. The next prime is 107216749. The reversal of 107216705 is 507612701.

It can be written as a sum of positive squares in 4 ways, for example, as 51609856 + 55606849 = 7184^2 + 7457^2 .

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 107216705 - 24 = 107216689 is a prime.

It is a super-2 number, since 2×1072167052 = 22990843662114050, which contains 22 as substring.

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

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, 630602 + ... + 630771.

It is an arithmetic number, because the mean of its divisors is an integer number (17028549).

Almost surely, 2107216705 is an apocalyptic number.

It is an amenable number.

107216705 is a deficient number, since it is larger than the sum of its proper divisors (29011687).

107216705 is a wasteful number, since it uses less digits than its factorization.

107216705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261395.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 107216705 is about 10354.5499660777. The cubic root of 107216705 is about 475.0662216076.

The spelling of 107216705 in words is "one hundred seven million, two hundred sixteen thousand, seven hundred five".

Divisors: 1 5 17 85 1261373 6306865 21443341 107216705