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41920821 = 341927239
BaseRepresentation
bin1001111111101…
…0100100110101
32220212210120000
42133322210311
541212431241
64054301513
71016215065
oct237724465
986783500
1041920821
1121732808
1212057899
1388b9c27
1457d33a5
153a30eb6
hex27fa935

41920821 has 20 divisors (see below), whose sum is σ = 65920800. Its totient is φ = 26475336.

The previous prime is 41920817. The next prime is 41920873. The reversal of 41920821 is 12802914.

It is not a de Polignac number, because 41920821 - 22 = 41920817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41920891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12081 + ... + 15158.

It is an arithmetic number, because the mean of its divisors is an integer number (3296040).

Almost surely, 241920821 is an apocalyptic number.

It is an amenable number.

41920821 is a deficient number, since it is larger than the sum of its proper divisors (23999979).

41920821 is a wasteful number, since it uses less digits than its factorization.

41920821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27270 (or 27261 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 41920821 is about 6474.6290241218. The cubic root of 41920821 is about 347.3840919094.

The spelling of 41920821 in words is "forty-one million, nine hundred twenty thousand, eight hundred twenty-one".

Divisors: 1 3 9 19 27 57 81 171 513 1539 27239 81717 245151 517541 735453 1552623 2206359 4657869 13973607 41920821