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4006929 = 31970297
BaseRepresentation
bin1111010010010000010001
321112120110210
433102100101
52011210204
6221514333
746026003
oct17222021
97476423
104006929
112297513
1214129a9
13aa3a84
14764373
15542389
hex3d2411

4006929 has 8 divisors (see below), whose sum is σ = 5623840. Its totient is φ = 2530656.

The previous prime is 4006927. The next prime is 4006931. The reversal of 4006929 is 9296004.

It is an interprime number because it is at equal distance from previous prime (4006927) and next prime (4006931).

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

It is not a de Polignac number, because 4006929 - 21 = 4006927 is a prime.

It is a super-2 number, since 2×40069292 = 32110960022082, which contains 22 as substring.

It is a Duffinian number.

4006929 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4006896 and 4006905.

It is not an unprimeable number, because it can be changed into a prime (4006927) 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, 35092 + ... + 35205.

It is an arithmetic number, because the mean of its divisors is an integer number (702980).

Almost surely, 24006929 is an apocalyptic number.

It is an amenable number.

4006929 is a deficient number, since it is larger than the sum of its proper divisors (1616911).

4006929 is a wasteful number, since it uses less digits than its factorization.

4006929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70319.

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

The square root of 4006929 is about 2001.7315004765. The cubic root of 4006929 is about 158.8317115046.

The spelling of 4006929 in words is "four million, six thousand, nine hundred twenty-nine".

Divisors: 1 3 19 57 70297 210891 1335643 4006929