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13500454 = 211255787
BaseRepresentation
bin110011100000…
…000000100110
3221101220010211
4303200000212
511424003304
61201210034
7222515632
oct63400046
927356124
1013500454
117691100
12463091a
132a48c46
141b15dc2
1512ba204
hexce0026

13500454 has 12 divisors (see below), whose sum is σ = 22259412. Its totient is φ = 6136460.

The previous prime is 13500451. The next prime is 13500463. The reversal of 13500454 is 45400531.

It is a super-2 number, since 2×135004542 = 364524516412232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27652 + ... + 28135.

It is an arithmetic number, because the mean of its divisors is an integer number (1854951).

Almost surely, 213500454 is an apocalyptic number.

13500454 is a deficient number, since it is larger than the sum of its proper divisors (8758958).

13500454 is a wasteful number, since it uses less digits than its factorization.

13500454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55811 (or 55800 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13500454 is about 3674.2963952300. The cubic root of 13500454 is about 238.1128269508.

Adding to 13500454 its reverse (45400531), we get a palindrome (58900985).

The spelling of 13500454 in words is "thirteen million, five hundred thousand, four hundred fifty-four".

Divisors: 1 2 11 22 121 242 55787 111574 613657 1227314 6750227 13500454