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130257015 = 3571240543
BaseRepresentation
bin1111100001110…
…01000001110111
3100002002202000220
413300321001313
5231321211030
620531505423
73141111030
oct760710167
9302082026
10130257015
1167588029
1237758273
1320ca8775
1413429a87
15b67ea10
hex7c39077

130257015 has 16 divisors (see below), whose sum is σ = 238184448. Its totient is φ = 59546016.

The previous prime is 130257013. The next prime is 130257031. The reversal of 130257015 is 510752031.

It is not a de Polignac number, because 130257015 - 21 = 130257013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130257013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620167 + ... + 620376.

It is an arithmetic number, because the mean of its divisors is an integer number (14886528).

Almost surely, 2130257015 is an apocalyptic number.

130257015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

130257015 is a deficient number, since it is larger than the sum of its proper divisors (107927433).

130257015 is a wasteful number, since it uses less digits than its factorization.

130257015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240558.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 130257015 is about 11413.0195391053. The cubic root of 130257015 is about 506.9133246631.

The spelling of 130257015 in words is "one hundred thirty million, two hundred fifty-seven thousand, fifteen".

Divisors: 1 3 5 7 15 21 35 105 1240543 3721629 6202715 8683801 18608145 26051403 43419005 130257015