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130423919 = 476194483
BaseRepresentation
bin1111100011000…
…01110001101111
3100002102012222112
413301201301233
5231342031134
620535234235
73142404443
oct761416157
9302365875
10130423919
116769146a
123781897b
1321036722
1413470823
15b6b41ce
hex7c61c6f

130423919 has 8 divisors (see below), whose sum is σ = 133443840. Its totient is φ = 127414296.

The previous prime is 130423907. The next prime is 130423939. The reversal of 130423919 is 919324031.

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

It is a cyclic number.

It is not a de Polignac number, because 130423919 - 24 = 130423903 is a prime.

It is a super-2 number, since 2×1304239192 = 34020797294637122, 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 (130423939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26852 + ... + 31334.

It is an arithmetic number, because the mean of its divisors is an integer number (16680480).

Almost surely, 2130423919 is an apocalyptic number.

130423919 is a deficient number, since it is larger than the sum of its proper divisors (3019921).

130423919 is an equidigital number, since it uses as much as digits as its factorization.

130423919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 130423919 is about 11420.3291984075. The cubic root of 130423919 is about 507.1297423121.

It can be divided in two parts, 13042 and 3919, that added together give a palindrome (16961).

The spelling of 130423919 in words is "one hundred thirty million, four hundred twenty-three thousand, nine hundred nineteen".

Divisors: 1 47 619 4483 29093 210701 2774977 130423919