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40007933 = 730718617
BaseRepresentation
bin1001100010011…
…1100011111101
32210021121120022
42120213203331
540220223213
63545301525
7664030130
oct230474375
983247508
1040007933
1120646609
12114948a5
13839a344
145456217
1537a4308
hex26278fd

40007933 has 8 divisors (see below), whose sum is σ = 45874752. Its totient is φ = 34178976.

The previous prime is 40007917. The next prime is 40007963. The reversal of 40007933 is 33970004.

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 40007933 - 24 = 40007917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007963) 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, 7160 + ... + 11457.

It is an arithmetic number, because the mean of its divisors is an integer number (5734344).

Almost surely, 240007933 is an apocalyptic number.

It is an amenable number.

40007933 is a deficient number, since it is larger than the sum of its proper divisors (5866819).

40007933 is a wasteful number, since it uses less digits than its factorization.

40007933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18931.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 40007933 is about 6325.1824479615. The cubic root of 40007933 is about 342.0177965729.

Adding to 40007933 its reverse (33970004), we get a palindrome (73977937).

The spelling of 40007933 in words is "forty million, seven thousand, nine hundred thirty-three".

Divisors: 1 7 307 2149 18617 130319 5715419 40007933