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130071650 = 2523770309
BaseRepresentation
bin1111100000010…
…11110001100010
3100001202022202112
413300023301202
5231244243100
620523515322
73136406432
oct760136142
9301668675
10130071650
1167470835
1237688b42
1320c42297
14133bc2c2
15b644b35
hex7c0bc62

130071650 has 24 divisors (see below), whose sum is σ = 248475540. Its totient is φ = 50621760.

The previous prime is 130071563. The next prime is 130071659. The reversal of 130071650 is 56170031.

It can be written as a sum of positive squares in 6 ways, for example, as 52085089 + 77986561 = 7217^2 + 8831^2 .

It is not an unprimeable number, because it can be changed into a prime (130071659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33305 + ... + 37004.

Almost surely, 2130071650 is an apocalyptic number.

130071650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130071650 is a deficient number, since it is larger than the sum of its proper divisors (118403890).

130071650 is a wasteful number, since it uses less digits than its factorization.

130071650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70358 (or 70353 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 130071650 is about 11404.8958785252. The cubic root of 130071650 is about 506.6727526008.

The spelling of 130071650 in words is "one hundred thirty million, seventy-one thousand, six hundred fifty".

Divisors: 1 2 5 10 25 37 50 74 185 370 925 1850 70309 140618 351545 703090 1757725 2601433 3515450 5202866 13007165 26014330 65035825 130071650