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2069431 = 71322741
BaseRepresentation
bin111111001001110110111
310220010201121
413321032313
51012210211
6112204411
723406220
oct7711667
93803647
102069431
111193881
12839707
13575c20
143bc247
152ad271
hex1f93b7

2069431 has 8 divisors (see below), whose sum is σ = 2547104. Its totient is φ = 1637280.

The previous prime is 2069413. The next prime is 2069443. The reversal of 2069431 is 1349602.

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 2069431 - 25 = 2069399 is a prime.

It is a super-2 number, since 2×20694312 = 8565089327522, which contains 22 as substring.

2069431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2069396 and 2069405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069531) 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, 11280 + ... + 11461.

It is an arithmetic number, because the mean of its divisors is an integer number (318388).

22069431 is an apocalyptic number.

2069431 is a deficient number, since it is larger than the sum of its proper divisors (477673).

2069431 is a wasteful number, since it uses less digits than its factorization.

2069431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22761.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2069431 is about 1438.5517022339. The cubic root of 2069431 is about 127.4335114056.

It can be divided in two parts, 2069 and 431, that added together give a square (2500 = 502).

The spelling of 2069431 in words is "two million, sixty-nine thousand, four hundred thirty-one".

Divisors: 1 7 13 91 22741 159187 295633 2069431