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4470627421 = 131731987829
BaseRepresentation
bin1000010100111100…
…00101110001011101
3102112120021101220101
410022132011301131
533123440034141
62015341021101
7215533464121
oct41236056135
912476241811
104470627421
111994609607
12a49254791
13563291290
14305a61581
151b273a531
hex10a785c5d

4470627421 has 8 divisors (see below), whose sum is σ = 4842353880. Its totient is φ = 4102876992.

The previous prime is 4470627409. The next prime is 4470627481. The reversal of 4470627421 is 1247260744.

It can be written as a sum of positive squares in 4 ways, for example, as 421850521 + 4048776900 = 20539^2 + 63630^2 .

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 4470627421 - 211 = 4470625373 is a prime.

It is a super-2 number, since 2×44706274212 = 39973019074794222482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4470627481) 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, 991666 + ... + 996163.

It is an arithmetic number, because the mean of its divisors is an integer number (605294235).

Almost surely, 24470627421 is an apocalyptic number.

It is an amenable number.

4470627421 is a deficient number, since it is larger than the sum of its proper divisors (371726459).

4470627421 is a wasteful number, since it uses less digits than its factorization.

4470627421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988015.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 4470627421 is about 66862.7506239461. The cubic root of 4470627421 is about 1647.3637020498.

It can be divided in two parts, 44706 and 27421, that added together give a palindrome (72127).

The spelling of 4470627421 in words is "four billion, four hundred seventy million, six hundred twenty-seven thousand, four hundred twenty-one".

Divisors: 1 13 173 2249 1987829 25841777 343894417 4470627421