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1454528538 = 23280807141
BaseRepresentation
bin101011010110010…
…0101100000011010
310202100221201001100
41112230211200122
510434324403123
6400155332230
751021200661
oct12654454032
93670851040
101454528538
11687052901
12347151076
131a2461198
14db267dd8
1587a66643
hex56b2581a

1454528538 has 12 divisors (see below), whose sum is σ = 3151478538. Its totient is φ = 484842840.

The previous prime is 1454528519. The next prime is 1454528557. The reversal of 1454528538 is 8358254541.

1454528538 is a `hidden beast` number, since 14 + 54 + 52 + 8 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (1454528519) and next prime (1454528557).

It can be written as a sum of positive squares in only one way, i.e., 1390320369 + 64208169 = 37287^2 + 8013^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1454528493 and 1454528502.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40403553 + ... + 40403588.

Almost surely, 21454528538 is an apocalyptic number.

1454528538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1454528538 is an abundant number, since it is smaller than the sum of its proper divisors (1696950000).

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

1454528538 is a wasteful number, since it uses less digits than its factorization.

1454528538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80807149 (or 80807146 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 1454528538 is about 38138.2817913969. The cubic root of 1454528538 is about 1133.0282774312.

The spelling of 1454528538 in words is "one billion, four hundred fifty-four million, five hundred twenty-eight thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 9 18 80807141 161614282 242421423 484842846 727264269 1454528538