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20292485 = 54786351
BaseRepresentation
bin100110101101…
…0001110000101
31102011222001112
41031122032011
520143324420
62002534405
7334324523
oct115321605
942158045
1020292485
1110500054
126967405
1342865b5
1429a3313
151bac8c5
hex135a385

20292485 has 8 divisors (see below), whose sum is σ = 24869376. Its totient is φ = 15888400.

The previous prime is 20292479. The next prime is 20292487. The reversal of 20292485 is 58429202.

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

It is not a de Polignac number, because 20292485 - 24 = 20292469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20292487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42941 + ... + 43410.

It is an arithmetic number, because the mean of its divisors is an integer number (3108672).

Almost surely, 220292485 is an apocalyptic number.

It is an amenable number.

20292485 is a deficient number, since it is larger than the sum of its proper divisors (4576891).

20292485 is an equidigital number, since it uses as much as digits as its factorization.

20292485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86403.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20292485 is about 4504.7180821889. The cubic root of 20292485 is about 272.7585739663.

The spelling of 20292485 in words is "twenty million, two hundred ninety-two thousand, four hundred eighty-five".

Divisors: 1 5 47 235 86351 431755 4058497 20292485