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7021481701 = 13241547229
BaseRepresentation
bin1101000101000001…
…10100111011100101
3200010100011020010211
412202200310323211
5103334444403301
63120422415421
7335666416063
oct64240647345
920110136124
107021481701
112a83497143
12143b591571
1387b8b7900
144a874d033
152b165e051
hex1a2834ee5

7021481701 has 6 divisors (see below), whose sum is σ = 7603143090. Its totient is φ = 6481367568.

The previous prime is 7021481651. The next prime is 7021481743. The reversal of 7021481701 is 1071841207.

It can be written as a sum of positive squares in 3 ways, for example, as 384120801 + 6637360900 = 19599^2 + 81470^2 .

It is not a de Polignac number, because 7021481701 - 215 = 7021448933 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 (7021487701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20773446 + ... + 20773783.

It is an arithmetic number, because the mean of its divisors is an integer number (1267190515).

Almost surely, 27021481701 is an apocalyptic number.

It is an amenable number.

7021481701 is a deficient number, since it is larger than the sum of its proper divisors (581661389).

7021481701 is a wasteful number, since it uses less digits than its factorization.

7021481701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41547255 (or 41547242 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 7021481701 is about 83794.2820304584. The cubic root of 7021481701 is about 1914.8859947538.

The spelling of 7021481701 in words is "seven billion, twenty-one million, four hundred eighty-one thousand, seven hundred one".

Divisors: 1 13 169 41547229 540113977 7021481701