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61068100897 = 94764485851
BaseRepresentation
bin111000110111111100…
…010100010100100001
312211121221101221201201
4320313330110110201
52000031413212042
644015421201201
74261216202326
oct706774242441
9184557357651
1061068100897
1123998395081
12ba03700201
1359b2b1c65b
142d5468ab4d
1518c63d71b7
hexe37f14521

61068100897 has 4 divisors (see below), whose sum is σ = 61132587696. Its totient is φ = 61003614100.

The previous prime is 61068100867. The next prime is 61068100901. The reversal of 61068100897 is 79800186016.

61068100897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 61068100897 - 227 = 60933883169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61068100867) 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, 32241979 + ... + 32243872.

It is an arithmetic number, because the mean of its divisors is an integer number (15283146924).

Almost surely, 261068100897 is an apocalyptic number.

It is an amenable number.

61068100897 is a deficient number, since it is larger than the sum of its proper divisors (64486799).

61068100897 is an equidigital number, since it uses as much as digits as its factorization.

61068100897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64486798.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 61068100897 in words is "sixty-one billion, sixty-eight million, one hundred thousand, eight hundred ninety-seven".

Divisors: 1 947 64485851 61068100897