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27397468 = 2273191051
BaseRepresentation
bin110100010000…
…0110101011100
31220112221021001
41220200311130
524003204333
62415120044
7451606000
oct150406534
956487231
1027397468
111451313a
129213024
1358a3527
1438d2700
152612b7d
hex1a20d5c

27397468 has 48 divisors (see below), whose sum is σ = 58912000. Its totient is φ = 11113200.

The previous prime is 27397463. The next prime is 27397483. The reversal of 27397468 is 86479372.

It is a super-2 number, since 2×273974682 = 1501242505622048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27397463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25543 + ... + 26593.

Almost surely, 227397468 is an apocalyptic number.

27397468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27397468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29456000).

27397468 is an abundant number, since it is smaller than the sum of its proper divisors (31514532).

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

27397468 is a wasteful number, since it uses less digits than its factorization.

27397468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1079 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 27397468 is about 5234.2590688654. The cubic root of 27397468 is about 301.4649385765.

The spelling of 27397468 in words is "twenty-seven million, three hundred ninety-seven thousand, four hundred sixty-eight".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 343 532 686 931 1051 1372 1862 2102 3724 4204 6517 7357 13034 14714 19969 26068 29428 39938 51499 79876 102998 139783 205996 279566 360493 559132 720986 978481 1441972 1956962 3913924 6849367 13698734 27397468