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20948254 = 261171707
BaseRepresentation
bin100111111101…
…0010100011110
31110102021121021
41033322110132
520330321004
62024554354
7343025425
oct117722436
943367537
1020948254
1110908808
1270229ba
134455c22
142ad42bc
151c8bd54
hex13fa51e

20948254 has 8 divisors (see below), whose sum is σ = 31937688. Its totient is φ = 10302360.

The previous prime is 20948251. The next prime is 20948261. The reversal of 20948254 is 45284902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20948251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85732 + ... + 85975.

It is an arithmetic number, because the mean of its divisors is an integer number (3992211).

Almost surely, 220948254 is an apocalyptic number.

20948254 is a deficient number, since it is larger than the sum of its proper divisors (10989434).

20948254 is a wasteful number, since it uses less digits than its factorization.

20948254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171770.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20948254 is about 4576.9262611495. The cubic root of 20948254 is about 275.6656228572.

The spelling of 20948254 in words is "twenty million, nine hundred forty-eight thousand, two hundred fifty-four".

Divisors: 1 2 61 122 171707 343414 10474127 20948254