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8130391426 = 216324939851
BaseRepresentation
bin1111001001001101…
…11110110110000010
3202222121202200022101
413210212332312002
5113122340011201
63422434301014
7405323121043
oct74446766602
922877680271
108130391426
1134a2437463
1216aaa2776a
139c7567b01
14571b2a8ca
15328ba4d01
hex1e49bed82

8130391426 has 8 divisors (see below), whose sum is σ = 12270407184. Its totient is φ = 4040255700.

The previous prime is 8130391391. The next prime is 8130391427. The reversal of 8130391426 is 6241930318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×81303914262 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8130391427) 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, 12469600 + ... + 12470251.

It is an arithmetic number, because the mean of its divisors is an integer number (1533800898).

Almost surely, 28130391426 is an apocalyptic number.

8130391426 is a deficient number, since it is larger than the sum of its proper divisors (4140015758).

8130391426 is a wasteful number, since it uses less digits than its factorization.

8130391426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24940016.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 8130391426 is about 90168.6831776976. The cubic root of 8130391426 is about 2010.8074465232.

The spelling of 8130391426 in words is "eight billion, one hundred thirty million, three hundred ninety-one thousand, four hundred twenty-six".

Divisors: 1 2 163 326 24939851 49879702 4065195713 8130391426