Search a number
-
+
61401322 = 273420557
BaseRepresentation
bin1110101000111…
…0100011101010
311021112111210001
43222032203222
5111204320242
610032013214
71343621413
oct352164352
9137474701
1061401322
11317287a4
121869120a
13c94aa58
14822480a
1555cceb7
hex3a8e8ea

61401322 has 8 divisors (see below), whose sum is σ = 93363876. Its totient is φ = 30280032.

The previous prime is 61401311. The next prime is 61401337. The reversal of 61401322 is 22310416.

It can be written as a sum of positive squares in 2 ways, for example, as 54479161 + 6922161 = 7381^2 + 2631^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61401322.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210133 + ... + 210424.

Almost surely, 261401322 is an apocalyptic number.

61401322 is a deficient number, since it is larger than the sum of its proper divisors (31962554).

61401322 is a wasteful number, since it uses less digits than its factorization.

61401322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420632.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 61401322 is about 7835.8995654615. The cubic root of 61401322 is about 394.5111122974.

Adding to 61401322 its reverse (22310416), we get a palindrome (83711738).

The spelling of 61401322 in words is "sixty-one million, four hundred one thousand, three hundred twenty-two".

Divisors: 1 2 73 146 420557 841114 30700661 61401322