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7230440213 = 32592218607
BaseRepresentation
bin1101011101111011…
…11100001100010101
3200122220100102022222
412232331330030111
5104301443041323
63153245232125
7344114504423
oct65675741425
920586312288
107230440213
113080438827
121499562645
138b2c8a6b9
144c83c4113
152c4b879c8
hex1aef7c315

7230440213 has 4 divisors (see below), whose sum is σ = 7232662080. Its totient is φ = 7228218348.

The previous prime is 7230440207. The next prime is 7230440249. The reversal of 7230440213 is 3120440327.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3120440327 = 15791976213.

It is a cyclic number.

It is not a de Polignac number, because 7230440213 - 214 = 7230423829 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 (7230440263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106045 + ... + 1112562.

It is an arithmetic number, because the mean of its divisors is an integer number (1808165520).

Almost surely, 27230440213 is an apocalyptic number.

It is an amenable number.

7230440213 is a deficient number, since it is larger than the sum of its proper divisors (2221867).

7230440213 is a wasteful number, since it uses less digits than its factorization.

7230440213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221866.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 7230440213 is about 85031.9952312069. The cubic root of 7230440213 is about 1933.6962119450.

The spelling of 7230440213 in words is "seven billion, two hundred thirty million, four hundred forty thousand, two hundred thirteen".

Divisors: 1 3259 2218607 7230440213