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20350974 = 237269221
BaseRepresentation
bin100110110100…
…0011111111110
31102021221021210
41031220133332
520202212344
62004105250
7334660200
oct115503776
942257253
1020350974
111053aa96
126995226
1342a70c7
1429ba770
151bbedb9
hex13687fe

20350974 has 24 divisors (see below), whose sum is σ = 47347848. Its totient is φ = 5814480.

The previous prime is 20350969. The next prime is 20350991. The reversal of 20350974 is 47905302.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34317 + ... + 34904.

It is an arithmetic number, because the mean of its divisors is an integer number (1972827).

Almost surely, 220350974 is an apocalyptic number.

20350974 is an abundant number, since it is smaller than the sum of its proper divisors (26996874).

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

20350974 is a wasteful number, since it uses less digits than its factorization.

20350974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69240 (or 69233 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 20350974 is about 4511.2053821567. The cubic root of 20350974 is about 273.0203798067.

The spelling of 20350974 in words is "twenty million, three hundred fifty thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 69221 138442 207663 415326 484547 969094 1453641 2907282 3391829 6783658 10175487 20350974