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20293064 = 23111953229
BaseRepresentation
bin100110101101…
…0010111001000
31102011222211222
41031122113020
520143334224
62002541212
7334326311
oct115322710
942158758
1020293064
1110500530
126967808
13428693c
1429a3608
151bacb5e
hex135a5c8

20293064 has 64 divisors (see below), whose sum is σ = 44712000. Its totient is φ = 8536320.

The previous prime is 20292997. The next prime is 20293067. The reversal of 20293064 is 46039202.

It is not an unprimeable number, because it can be changed into a prime (20293067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88502 + ... + 88730.

It is an arithmetic number, because the mean of its divisors is an integer number (698625).

Almost surely, 220293064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20293064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22356000).

20293064 is an abundant number, since it is smaller than the sum of its proper divisors (24418936).

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

20293064 is a wasteful number, since it uses less digits than its factorization.

20293064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20293064 is about 4504.7823476834. The cubic root of 20293064 is about 272.7611681239.

The spelling of 20293064 in words is "twenty million, two hundred ninety-three thousand, sixty-four".

Divisors: 1 2 4 8 11 19 22 38 44 53 76 88 106 152 209 212 229 418 424 458 583 836 916 1007 1166 1672 1832 2014 2332 2519 4028 4351 4664 5038 8056 8702 10076 11077 12137 17404 20152 22154 24274 34808 44308 47861 48548 88616 95722 97096 133507 191444 230603 267014 382888 461206 534028 922412 1068056 1844824 2536633 5073266 10146532 20293064