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7240034281 is a prime number
BaseRepresentation
bin1101011111000101…
…00010011111101001
3200200120101211220211
412233202202133221
5104311422044111
63154231021121
7344262163444
oct65742423751
920616354824
107240034281
1130858a0a07
1214a080a7a1
138b4c6956c
144c97a065b
152c5930521
hex1af8a27e9

7240034281 has 2 divisors, whose sum is σ = 7240034282. Its totient is φ = 7240034280.

The previous prime is 7240034233. The next prime is 7240034309. The reversal of 7240034281 is 1824300427.

7240034281 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7208010000 + 32024281 = 84900^2 + 5659^2 .

It is a cyclic number.

It is not a de Polignac number, because 7240034281 - 215 = 7240001513 is a prime.

It is a super-2 number, since 2×72400342812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7240034201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3620017140 + 3620017141.

It is an arithmetic number, because the mean of its divisors is an integer number (3620017141).

Almost surely, 27240034281 is an apocalyptic number.

It is an amenable number.

7240034281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7240034281 is an equidigital number, since it uses as much as digits as its factorization.

7240034281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 7240034281 is about 85088.3909884304. The cubic root of 7240034281 is about 1934.5511074928.

The spelling of 7240034281 in words is "seven billion, two hundred forty million, thirty-four thousand, two hundred eighty-one".