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130437473 = 182371551
BaseRepresentation
bin1111100011001…
…01000101100001
3100002102220120112
413301211011201
5231342444343
620535421105
73142462115
oct761450541
9302386515
10130437473
11676a0671
1237824795
132103c94a
1413475745
15b6b8218
hex7c65161

130437473 has 4 divisors (see below), whose sum is σ = 130510848. Its totient is φ = 130364100.

The previous prime is 130437467. The next prime is 130437487. The reversal of 130437473 is 374734031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 374734031 = 753533433.

It is a cyclic number.

It is not a de Polignac number, because 130437473 - 214 = 130421089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130437493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33953 + ... + 37598.

It is an arithmetic number, because the mean of its divisors is an integer number (32627712).

Almost surely, 2130437473 is an apocalyptic number.

It is an amenable number.

130437473 is a deficient number, since it is larger than the sum of its proper divisors (73375).

130437473 is an equidigital number, since it uses as much as digits as its factorization.

130437473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73374.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 130437473 is about 11420.9225984594. The cubic root of 130437473 is about 507.1473091267.

The spelling of 130437473 in words is "one hundred thirty million, four hundred thirty-seven thousand, four hundred seventy-three".

Divisors: 1 1823 71551 130437473