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20368148 = 2225120287
BaseRepresentation
bin100110110110…
…0101100010100
31102022210211212
41031230230110
520203240043
62004320552
7335061233
oct115545424
942283755
1020368148
1110551989
1269a3158
1342b1b78
1429c2b1a
151bc5018
hex136cb14

20368148 has 12 divisors (see below), whose sum is σ = 35788032. Its totient is φ = 10143000.

The previous prime is 20368129. The next prime is 20368163. The reversal of 20368148 is 84186302.

It is a super-2 number, since 2×203681482 = 829722905899808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9140 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (2982336).

Almost surely, 220368148 is an apocalyptic number.

It is an amenable number.

20368148 is a deficient number, since it is larger than the sum of its proper divisors (15419884).

20368148 is a wasteful number, since it uses less digits than its factorization.

20368148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20542 (or 20540 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 20368148 is about 4513.1084631327. The cubic root of 20368148 is about 273.0971580100.

The spelling of 20368148 in words is "twenty million, three hundred sixty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 251 502 1004 20287 40574 81148 5092037 10184074 20368148