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45054648 = 233279892
BaseRepresentation
bin1010101111011…
…1101010111000
310010210000100200
42223313222320
543013222043
64245402200
71054646442
oct253675270
9103700320
1045054648
1123483251
1213109360
139446472
145dab492
153e4e7d3
hex2af7ab8

45054648 has 72 divisors (see below), whose sum is σ = 124971600. Its totient is φ = 14661504.

The previous prime is 45054637. The next prime is 45054649. The reversal of 45054648 is 84645054.

45054648 is a `hidden beast` number, since 4 + 5 + 0 + 5 + 4 + 648 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45054649) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 506188 + ... + 506276.

Almost surely, 245054648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45054648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62485800).

45054648 is an abundant number, since it is smaller than the sum of its proper divisors (79916952).

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

45054648 is a wasteful number, since it uses less digits than its factorization.

45054648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 45054648 is about 6712.2759180475. The cubic root of 45054648 is about 355.8332552449.

The spelling of 45054648 in words is "forty-five million, fifty-four thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 79 89 158 178 237 267 316 356 474 534 632 711 712 801 948 1068 1422 1602 1896 2136 2844 3204 5688 6408 7031 7921 14062 15842 21093 23763 28124 31684 42186 47526 56248 63279 63368 71289 84372 95052 126558 142578 168744 190104 253116 285156 506232 570312 625759 1251518 1877277 2503036 3754554 5006072 5631831 7509108 11263662 15018216 22527324 45054648