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6490115461 = 47601229763
BaseRepresentation
bin1100000101101011…
…10100110110000101
3121202022022000200201
412002311310312011
5101242432143321
62552001410501
7316555033264
oct60265646605
917668260621
106490115461
112830556895
121311639a31
137c579ca0b
14457d505db
1527eb9c291
hex182d74d85

6490115461 has 8 divisors (see below), whose sum is σ = 6639260544. Its totient is φ = 6341431200.

The previous prime is 6490115389. The next prime is 6490115473. The reversal of 6490115461 is 1645110946.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6490115461 is a prime.

It is a super-2 number, since 2×64901154612 = 84243197394222485042, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6490115461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490118461) 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, 86635 + ... + 143128.

It is an arithmetic number, because the mean of its divisors is an integer number (829907568).

Almost surely, 26490115461 is an apocalyptic number.

It is an amenable number.

6490115461 is a deficient number, since it is larger than the sum of its proper divisors (149145083).

6490115461 is a wasteful number, since it uses less digits than its factorization.

6490115461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230411.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 6490115461 is about 80561.2528514794. The cubic root of 6490115461 is about 1865.3090945743.

The spelling of 6490115461 in words is "six billion, four hundred ninety million, one hundred fifteen thousand, four hundred sixty-one".

Divisors: 1 47 601 28247 229763 10798861 138087563 6490115461