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7406151481 = 41220992
BaseRepresentation
bin1101110010111000…
…01110011100111001
3201010010222110212201
412321130032130321
5110131433321411
63222523310201
7351350151241
oct67134163471
921103873781
107406151481
113160641253
12152837b361
139104bc471
14503882b21
152d52e53c1
hex1b970e739

7406151481 has 9 divisors (see below), whose sum is σ = 7594813423. Its totient is φ = 7222071280.

The previous prime is 7406151463. The next prime is 7406151521. The reversal of 7406151481 is 1841516047.

The square root of 7406151481 is 86059.

It is a perfect power (a square), and thus also a powerful number.

7406151481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 356869881 + 7049281600 = 18891^2 + 83960^2 .

It is not a de Polignac number, because 7406151481 - 27 = 7406151353 is a prime.

It is a super-2 number, since 2×74061514812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7406151481.

It is not an unprimeable number, because it can be changed into a prime (7406161481) 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 in 8 ways as a sum of consecutive naturals, for example, 3527370 + ... + 3529468.

Almost surely, 27406151481 is an apocalyptic number.

7406151481 is the 86059-th square number.

7406151481 is the 43030-th centered octagonal number.

It is an amenable number.

7406151481 is a deficient number, since it is larger than the sum of its proper divisors (188661942).

7406151481 is an frugal number, since it uses more digits than its factorization.

7406151481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The cubic root of 7406151481 is about 1949.2349820487.

The spelling of 7406151481 in words is "seven billion, four hundred six million, one hundred fifty-one thousand, four hundred eighty-one".

Divisors: 1 41 1681 2099 86059 3528419 4405801 180637841 7406151481