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16031929 = 312771867
BaseRepresentation
bin111101001010…
…000010111001
31010011111200011
4331022002321
513101010204
61331341521
7253161214
oct75120271
933144604
1016031929
119060031
1254518a1
133424264
1421b477b
15161a304
hexf4a0b9

16031929 has 8 divisors (see below), whose sum is σ = 16617728. Its totient is φ = 15450480.

The previous prime is 16031923. The next prime is 16031933. The reversal of 16031929 is 92913061.

16031929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16031929 - 23 = 16031921 is a prime.

It is a super-2 number, since 2×160319292 = 514045494922082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16031929.

It is not an unprimeable number, because it can be changed into a prime (16031921) 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, 7654 + ... + 9520.

It is an arithmetic number, because the mean of its divisors is an integer number (2077216).

Almost surely, 216031929 is an apocalyptic number.

It is an amenable number.

16031929 is a deficient number, since it is larger than the sum of its proper divisors (585799).

16031929 is a wasteful number, since it uses less digits than its factorization.

16031929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 16031929 is about 4003.9891358494. The cubic root of 16031929 is about 252.1517153525.

The spelling of 16031929 in words is "sixteen million, thirty-one thousand, nine hundred twenty-nine".

Divisors: 1 31 277 1867 8587 57877 517159 16031929