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130220769 = 376200989
BaseRepresentation
bin1111100001100…
…00001011100001
3100002000220022110
413300300023201
5231314031034
620531025533
73140600250
oct760601341
9302026273
10130220769
1167562878
123773b2a9
1320c95113
141341a797
15b673de9
hex7c302e1

130220769 has 8 divisors (see below), whose sum is σ = 198431680. Its totient is φ = 74411856.

The previous prime is 130220749. The next prime is 130220807. The reversal of 130220769 is 967022031.

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

It is not a de Polignac number, because 130220769 - 28 = 130220513 is a prime.

It is a super-2 number, since 2×1302207692 = 33914897357902722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130220719) 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, 3100474 + ... + 3100515.

It is an arithmetic number, because the mean of its divisors is an integer number (24803960).

Almost surely, 2130220769 is an apocalyptic number.

It is an amenable number.

130220769 is a deficient number, since it is larger than the sum of its proper divisors (68210911).

130220769 is an equidigital number, since it uses as much as digits as its factorization.

130220769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200999.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 130220769 is about 11411.4315052933. The cubic root of 130220769 is about 506.8663015146.

The spelling of 130220769 in words is "one hundred thirty million, two hundred twenty thousand, seven hundred sixty-nine".

Divisors: 1 3 7 21 6200989 18602967 43406923 130220769