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130824047 = 647202201
BaseRepresentation
bin1111100110000…
…11011101101111
3100010011112212002
413303003131233
5231442332142
620552002515
73145662134
oct763033557
9303145762
10130824047
1167935052
123799043b
13211468a3
141353658b
15b742a32
hex7cc376f

130824047 has 4 divisors (see below), whose sum is σ = 131026896. Its totient is φ = 130621200.

The previous prime is 130824041. The next prime is 130824073. The reversal of 130824047 is 740428031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130824047 is a prime.

It is a super-2 number, since 2×1308240472 = 34229862546916418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130824041) 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, 100454 + ... + 101747.

It is an arithmetic number, because the mean of its divisors is an integer number (32756724).

Almost surely, 2130824047 is an apocalyptic number.

130824047 is a deficient number, since it is larger than the sum of its proper divisors (202849).

130824047 is an equidigital number, since it uses as much as digits as its factorization.

130824047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202848.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 130824047 is about 11437.8340169807. The cubic root of 130824047 is about 507.6478212409.

The spelling of 130824047 in words is "one hundred thirty million, eight hundred twenty-four thousand, forty-seven".

Divisors: 1 647 202201 130824047