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130648426 = 265324213
BaseRepresentation
bin1111100100110…
…00100101101010
3100002211121221121
413302120211222
5231421222201
620544125454
73144331126
oct762304552
9302747847
10130648426
1167825107
123790688a
13210b497c
14134cc586
15b70a9a1
hex7c9896a

130648426 has 4 divisors (see below), whose sum is σ = 195972642. Its totient is φ = 65324212.

The previous prime is 130648423. The next prime is 130648429. The reversal of 130648426 is 624846031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624846031 = 1673741593.

It is an interprime number because it is at equal distance from previous prime (130648423) and next prime (130648429).

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 4198401 = 11245^2 + 2049^2 .

It is a super-2 number, since 2×1306484262 = 34138022432554952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130648391 and 130648400.

It is not an unprimeable number, because it can be changed into a prime (130648423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32662105 + ... + 32662108.

Almost surely, 2130648426 is an apocalyptic number.

130648426 is a deficient number, since it is larger than the sum of its proper divisors (65324216).

130648426 is an equidigital number, since it uses as much as digits as its factorization.

130648426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65324215.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 130648426 is about 11430.1542421789. The cubic root of 130648426 is about 507.4205604181.

The spelling of 130648426 in words is "one hundred thirty million, six hundred forty-eight thousand, four hundred twenty-six".

Divisors: 1 2 65324213 130648426