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20148412 = 229675209
BaseRepresentation
bin100110011011…
…1000010111100
31101220122102111
41030313002330
520124222122
61555503404
7333154504
oct114670274
941818374
1020148412
1110411889
1268b7b64
134235b4b
142966a04
151b7ed77
hex13370bc

20148412 has 12 divisors (see below), whose sum is σ = 35302960. Its totient is φ = 10061856.

The previous prime is 20148409. The next prime is 20148413. The reversal of 20148412 is 21484102.

It is a super-2 number, since 2×201484122 = 811917012243488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20148413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264 + ... + 6472.

Almost surely, 220148412 is an apocalyptic number.

It is an amenable number.

20148412 is a deficient number, since it is larger than the sum of its proper divisors (15154548).

20148412 is a wasteful number, since it uses less digits than its factorization.

20148412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180 (or 6178 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 20148412 is about 4488.6982522776. The cubic root of 20148412 is about 272.1115279376. Note that the first 3 decimals are identical.

The spelling of 20148412 in words is "twenty million, one hundred forty-eight thousand, four hundred twelve".

Divisors: 1 2 4 967 1934 3868 5209 10418 20836 5037103 10074206 20148412