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20253096 = 23321032731
BaseRepresentation
bin100110101000…
…0100110101000
31102002222000200
41031100212220
520141044341
62002032200
7334101633
oct115204650
942088020
1020253096
11104834a6
126948660
1342716a6
142992c1a
151ba0db6
hex13509a8

20253096 has 48 divisors (see below), whose sum is σ = 55404960. Its totient is φ = 6683040.

The previous prime is 20253091. The next prime is 20253109. The reversal of 20253096 is 69035202.

It is not an unprimeable number, because it can be changed into a prime (20253091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6051 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (1154270).

Almost surely, 220253096 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 20253096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27702480).

20253096 is an abundant number, since it is smaller than the sum of its proper divisors (35151864).

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

20253096 is a wasteful number, since it uses less digits than its factorization.

20253096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20253096 is about 4500.3439868526. The cubic root of 20253096 is about 272.5819790944.

Adding to 20253096 its reverse (69035202), we get a palindrome (89288298).

It can be divided in two parts, 20 and 253096, that added together give a triangular number (253116 = T711).

The spelling of 20253096 in words is "twenty million, two hundred fifty-three thousand, ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 103 206 309 412 618 824 927 1236 1854 2472 2731 3708 5462 7416 8193 10924 16386 21848 24579 32772 49158 65544 98316 196632 281293 562586 843879 1125172 1687758 2250344 2531637 3375516 5063274 6751032 10126548 20253096