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41978790 = 23357219167
BaseRepresentation
bin1010000000100…
…0101110100110
32220222202002000
42200020232212
541221310130
64055430130
71016546100
oct240105646
986882060
1041978790
1121772317
1212085346
13890a429
14580a570
153a43260
hex2808ba6

41978790 has 192 divisors, whose sum is σ = 137894400. Its totient is φ = 9035712.

The previous prime is 41978789. The next prime is 41978801. The reversal of 41978790 is 9787914.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 251287 + ... + 251453.

It is an arithmetic number, because the mean of its divisors is an integer number (718200).

Almost surely, 241978790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41978790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68947200).

41978790 is an abundant number, since it is smaller than the sum of its proper divisors (95915610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41978790 is a wasteful number, since it uses less digits than its factorization.

41978790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 41978790 is about 6479.1041047355. The cubic root of 41978790 is about 347.5441415210.

The spelling of 41978790 in words is "forty-one million, nine hundred seventy-eight thousand, seven hundred ninety".