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20948292 = 2232659883
BaseRepresentation
bin100111111101…
…0010101000100
31110102021122200
41033322111010
520330321132
62024554500
7343025511
oct117722504
943367580
1020948292
1110908842
127022a30
134455c51
142ad4308
151c8bd7c
hex13fa544

20948292 has 36 divisors (see below), whose sum is σ = 53093040. Its totient is φ = 6964272.

The previous prime is 20948261. The next prime is 20948321. The reversal of 20948292 is 29284902.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23283 + ... + 24165.

Almost surely, 220948292 is an apocalyptic number.

It is an amenable number.

20948292 is an abundant number, since it is smaller than the sum of its proper divisors (32144748).

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

20948292 is a wasteful number, since it uses less digits than its factorization.

20948292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20948292 is about 4576.9304124052. The cubic root of 20948292 is about 275.6657895423.

The spelling of 20948292 in words is "twenty million, nine hundred forty-eight thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 659 883 1318 1766 1977 2636 2649 3532 3954 5298 5931 7908 7947 10596 11862 15894 23724 31788 581897 1163794 1745691 2327588 3491382 5237073 6982764 10474146 20948292