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130542452 = 2235990907
BaseRepresentation
bin1111100011111…
…10101101110100
3100002122020120122
413301332231310
5231404324302
620541551112
73143410145
oct761765564
9302566518
10130542452
1167762527
1237875498
1321078671
14134a1acc
15b6d93a2
hex7c7eb74

130542452 has 12 divisors (see below), whose sum is σ = 229088160. Its totient is φ = 65088696.

The previous prime is 130542443. The next prime is 130542493. The reversal of 130542452 is 254245031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44018 + ... + 46889.

It is an arithmetic number, because the mean of its divisors is an integer number (19090680).

Almost surely, 2130542452 is an apocalyptic number.

It is an amenable number.

130542452 is a deficient number, since it is larger than the sum of its proper divisors (98545708).

130542452 is a wasteful number, since it uses less digits than its factorization.

130542452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91270 (or 91268 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 130542452 is about 11425.5175812739. The cubic root of 130542452 is about 507.2833271479.

Adding to 130542452 its reverse (254245031), we get a palindrome (384787483).

The spelling of 130542452 in words is "one hundred thirty million, five hundred forty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 359 718 1436 90907 181814 363628 32635613 65271226 130542452