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5430660421 = 17355789809
BaseRepresentation
bin1010000111011000…
…10100110101000101
3112000110202010121011
411003230110311011
542110222113141
62254513522221
7251401565134
oct50354246505
915013663534
105430660421
11233751460a
121076873371
13687146944
1439736791b
1521bb74881
hex143b14d45

5430660421 has 8 divisors (see below), whose sum is σ = 5751791640. Its totient is φ = 5109715968.

The previous prime is 5430660377. The next prime is 5430660439. The reversal of 5430660421 is 1240660345.

It can be written as a sum of positive squares in 4 ways, for example, as 1657629796 + 3773030625 = 40714^2 + 61425^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5430660421 - 27 = 5430660293 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 (5430660821) 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, 15565 + ... + 105373.

It is an arithmetic number, because the mean of its divisors is an integer number (718973955).

Almost surely, 25430660421 is an apocalyptic number.

It is an amenable number.

5430660421 is a deficient number, since it is larger than the sum of its proper divisors (321131219).

5430660421 is a wasteful number, since it uses less digits than its factorization.

5430660421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93383.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 5430660421 is about 73693.0147368121. The cubic root of 5430660421 is about 1757.7248085483.

The spelling of 5430660421 in words is "five billion, four hundred thirty million, six hundred sixty thousand, four hundred twenty-one".

Divisors: 1 17 3557 60469 89809 1526753 319450613 5430660421