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130421524 = 2236788843
BaseRepresentation
bin1111100011000…
…01001100010100
3100002102002200211
413301201030110
5231341442044
620535215204
73142364452
oct761411424
9302362624
10130421524
116768a692
1237817504
13210355cc
141346d9d2
15b6b3634
hex7c61314

130421524 has 12 divisors (see below), whose sum is σ = 228862144. Its totient is φ = 65032344.

The previous prime is 130421503. The next prime is 130421527. The reversal of 130421524 is 425124031.

It is a junction number, because it is equal to n+sod(n) for n = 130421495 and 130421504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130421527) 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, 42954 + ... + 45889.

Almost surely, 2130421524 is an apocalyptic number.

It is an amenable number.

130421524 is a deficient number, since it is larger than the sum of its proper divisors (98440620).

130421524 is a wasteful number, since it uses less digits than its factorization.

130421524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89214 (or 89212 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 130421524 is about 11420.2243410539. The cubic root of 130421524 is about 507.1266381188.

Adding to 130421524 its reverse (425124031), we get a palindrome (555545555).

The spelling of 130421524 in words is "one hundred thirty million, four hundred twenty-one thousand, five hundred twenty-four".

Divisors: 1 2 4 367 734 1468 88843 177686 355372 32605381 65210762 130421524