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40679893 = 192393089
BaseRepresentation
bin1001101100101…
…1100111010101
32211112202022201
42123023213111
540403224033
64011524501
71002526162
oct233134725
984482281
1040679893
1120a65451
1211759731
138574157
14558d069
15388847d
hex26cb9d5

40679893 has 8 divisors (see below), whose sum is σ = 44683200. Its totient is φ = 36862848.

The previous prime is 40679869. The next prime is 40679897. The reversal of 40679893 is 39897604.

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 40679893 - 217 = 40548821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40679897) 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, 46108 + ... + 46981.

It is an arithmetic number, because the mean of its divisors is an integer number (5585400).

Almost surely, 240679893 is an apocalyptic number.

It is an amenable number.

40679893 is a deficient number, since it is larger than the sum of its proper divisors (4003307).

40679893 is a wasteful number, since it uses less digits than its factorization.

40679893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93131.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 40679893 is about 6378.0790995409. The cubic root of 40679893 is about 343.9219812477.

The spelling of 40679893 in words is "forty million, six hundred seventy-nine thousand, eight hundred ninety-three".

Divisors: 1 19 23 437 93089 1768691 2141047 40679893