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26998464 = 263140617
BaseRepresentation
bin110011011111…
…1011011000000
31212210122221010
41212333123000
523402422324
62402400520
7445324503
oct146773300
955718833
1026998464
1114270389
129060140
135793a2c
14382b13a
152584829
hex19bf6c0

26998464 has 28 divisors (see below), whose sum is σ = 71433944. Its totient is φ = 8999424.

The previous prime is 26998457. The next prime is 26998469. The reversal of 26998464 is 46489962.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (26998469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70117 + ... + 70500.

Almost surely, 226998464 is an apocalyptic number.

26998464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26998464 is an abundant number, since it is smaller than the sum of its proper divisors (44435480).

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

26998464 is a wasteful number, since it uses less digits than its factorization.

26998464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140632 (or 140622 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 26998464 is about 5196.0046189356. The cubic root of 26998464 is about 299.9943110032.

Subtracting from 26998464 its sum of digits (48), we obtain a square (26998416 = 51962).

The spelling of 26998464 in words is "twenty-six million, nine hundred ninety-eight thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 140617 281234 421851 562468 843702 1124936 1687404 2249872 3374808 4499744 6749616 8999488 13499232 26998464