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4245532421 = 13824339619
BaseRepresentation
bin1111110100001101…
…1010111100000101
3101221212201101121112
43331003122330011
532143324014141
61541140254405
7210131300354
oct37503327405
911855641545
104245532421
111889546389
129a59a1405
1352875b780
142c3bc999b
1519cac57eb
hexfd0daf05

4245532421 has 8 divisors (see below), whose sum is σ = 4572781920. Its totient is φ = 3918378672.

The previous prime is 4245532399. The next prime is 4245532427. The reversal of 4245532421 is 1242355424.

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

It is a de Polignac number, because none of the positive numbers 2k-4245532421 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 (4245532427) 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, 87350 + ... + 126968.

It is an arithmetic number, because the mean of its divisors is an integer number (571597740).

Almost surely, 24245532421 is an apocalyptic number.

It is an amenable number.

4245532421 is a deficient number, since it is larger than the sum of its proper divisors (327249499).

4245532421 is a wasteful number, since it uses less digits than its factorization.

4245532421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47875.

The product of its digits is 38400, while the sum is 32.

The square root of 4245532421 is about 65157.7502757730. The cubic root of 4245532421 is about 1619.2381243247.

Adding to 4245532421 its reverse (1242355424), we get a palindrome (5487887845).

The spelling of 4245532421 in words is "four billion, two hundred forty-five million, five hundred thirty-two thousand, four hundred twenty-one".

Divisors: 1 13 8243 39619 107159 515047 326579417 4245532421