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20462148 = 2232781199
BaseRepresentation
bin100111000001…
…1101001000100
31102111120210100
41032003221010
520214242043
62010324100
7335632260
oct116035104
942446710
1020462148
1110606573
126a29630
1343158a5
142a090a0
151be2cd3
hex1383a44

20462148 has 36 divisors (see below), whose sum is σ = 59113600. Its totient is φ = 5846256.

The previous prime is 20462137. The next prime is 20462149. The reversal of 20462148 is 84126402.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (20462149) 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, 40348 + ... + 40851.

Almost surely, 220462148 is an apocalyptic number.

20462148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20462148 is an abundant number, since it is smaller than the sum of its proper divisors (38651452).

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

20462148 is a wasteful number, since it uses less digits than its factorization.

20462148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81216 (or 81211 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 20462148 is about 4523.5105836065. The cubic root of 20462148 is about 273.5166322894.

The spelling of 20462148 in words is "twenty million, four hundred sixty-two thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 81199 162398 243597 324796 487194 568393 730791 974388 1136786 1461582 1705179 2273572 2923164 3410358 5115537 6820716 10231074 20462148