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40076869 = 729197423
BaseRepresentation
bin1001100011100…
…0011001000101
32210102010010111
42120320121011
540224424434
63550553021
7664435120
oct230703105
983363114
1040076869
1120693388
1211508771
1383c2831
1454733b7
1537b9964
hex2638645

40076869 has 8 divisors (see below), whose sum is σ = 47381760. Its totient is φ = 33166896.

The previous prime is 40076863. The next prime is 40076887. The reversal of 40076869 is 96867004.

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

It is not a de Polignac number, because 40076869 - 219 = 39552581 is a prime.

It is a super-2 number, since 2×400768692 = 3212310857686322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40076863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98509 + ... + 98914.

It is an arithmetic number, because the mean of its divisors is an integer number (5922720).

Almost surely, 240076869 is an apocalyptic number.

It is an amenable number.

40076869 is a deficient number, since it is larger than the sum of its proper divisors (7304891).

40076869 is a wasteful number, since it uses less digits than its factorization.

40076869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197459.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 40076869 is about 6330.6294315810. The cubic root of 40076869 is about 342.2141227203.

The spelling of 40076869 in words is "forty million, seventy-six thousand, eight hundred sixty-nine".

Divisors: 1 7 29 203 197423 1381961 5725267 40076869