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16069431 = 37765211
BaseRepresentation
bin111101010011…
…001100110111
31010020102010010
4331103030313
513103210211
61332231303
7253405440
oct75231467
933212103
1016069431
119086224
12546b533
133438351
1421c42c7
1516264a6
hexf53337

16069431 has 8 divisors (see below), whose sum is σ = 24486784. Its totient is φ = 9182520.

The previous prime is 16069409. The next prime is 16069453. The reversal of 16069431 is 13496061.

It is an interprime number because it is at equal distance from previous prime (16069409) and next prime (16069453).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16069431 - 25 = 16069399 is a prime.

It is a super-2 number, since 2×160694312 = 516453225327522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16069931) 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, 382585 + ... + 382626.

It is an arithmetic number, because the mean of its divisors is an integer number (3060848).

Almost surely, 216069431 is an apocalyptic number.

16069431 is a deficient number, since it is larger than the sum of its proper divisors (8417353).

16069431 is an equidigital number, since it uses as much as digits as its factorization.

16069431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765221.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 16069431 is about 4008.6694800145. The cubic root of 16069431 is about 252.3481739293.

The spelling of 16069431 in words is "sixteen million, sixty-nine thousand, four hundred thirty-one".

Divisors: 1 3 7 21 765211 2295633 5356477 16069431