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16381471907 = 231039968491
BaseRepresentation
bin11110100000110100…
…10110110010100011
31120021122121222212202
433100122112302203
5232022124100112
611305303443415
71116643133213
oct172032266243
946248558782
1016381471907
116a46a06339
12321215656b
131710b0b358
14b158b2243
1565d2496c2
hex3d0696ca3

16381471907 has 8 divisors (see below), whose sum is σ = 17095603200. Its totient is φ = 15667498440.

The previous prime is 16381471901. The next prime is 16381471913. The reversal of 16381471907 is 70917418361.

16381471907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16381471901) and next prime (16381471913).

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 16381471907 - 228 = 16113036451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16381471901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204932 + ... + 273422.

It is an arithmetic number, because the mean of its divisors is an integer number (2136950400).

Almost surely, 216381471907 is an apocalyptic number.

16381471907 is a deficient number, since it is larger than the sum of its proper divisors (714131293).

16381471907 is a wasteful number, since it uses less digits than its factorization.

16381471907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78913.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 16381471907 in words is "sixteen billion, three hundred eighty-one million, four hundred seventy-one thousand, nine hundred seven".

Divisors: 1 23 10399 68491 239177 1575293 712237909 16381471907