Search a number
-
+
61568801 = 759149077
BaseRepresentation
bin1110101011011…
…1011100100001
311021212000111222
43222313130201
5111230200201
610035344425
71345216610
oct352673441
9137760458
1061568801
1131832608
1218752115
13c9a9058
148269877
15561291b
hex3ab7721

61568801 has 8 divisors (see below), whose sum is σ = 71557440. Its totient is φ = 51878448.

The previous prime is 61568789. The next prime is 61568807. The reversal of 61568801 is 10886516.

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

It is a cyclic number.

It is not a de Polignac number, because 61568801 - 210 = 61567777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61568807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74126 + ... + 74951.

It is an arithmetic number, because the mean of its divisors is an integer number (8944680).

Almost surely, 261568801 is an apocalyptic number.

It is an amenable number.

61568801 is a deficient number, since it is larger than the sum of its proper divisors (9988639).

61568801 is a wasteful number, since it uses less digits than its factorization.

61568801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149143.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 61568801 is about 7846.5789360714. The cubic root of 61568801 is about 394.8694777856.

The spelling of 61568801 in words is "sixty-one million, five hundred sixty-eight thousand, eight hundred one".

Divisors: 1 7 59 413 149077 1043539 8795543 61568801