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6434780101 = 29221888969
BaseRepresentation
bin1011111111000101…
…01111001111000101
3121121110011200211221
411333202233033011
5101134300430401
62542303400341
7315313504561
oct57742571705
917543150757
106434780101
1128022a1592
1212b6bb30b1
137b7196cb9
144508686a1
15279dbb7a1
hex17f8af3c5

6434780101 has 4 divisors (see below), whose sum is σ = 6656669100. Its totient is φ = 6212891104.

The previous prime is 6434780089. The next prime is 6434780113. The reversal of 6434780101 is 1010874346.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6434780089) and next prime (6434780113).

It can be written as a sum of positive squares in 2 ways, for example, as 1138725025 + 5296055076 = 33745^2 + 72774^2 .

It is a cyclic number.

It is not a de Polignac number, because 6434780101 - 25 = 6434780069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6434780161) 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, 110944456 + ... + 110944513.

It is an arithmetic number, because the mean of its divisors is an integer number (1664167275).

Almost surely, 26434780101 is an apocalyptic number.

It is an amenable number.

6434780101 is a deficient number, since it is larger than the sum of its proper divisors (221888999).

6434780101 is a wasteful number, since it uses less digits than its factorization.

6434780101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221888998.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 6434780101 is about 80217.0811049617. The cubic root of 6434780101 is about 1859.9926870834.

The spelling of 6434780101 in words is "six billion, four hundred thirty-four million, seven hundred eighty thousand, one hundred one".

Divisors: 1 29 221888969 6434780101