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61313841286 = 230656920643
BaseRepresentation
bin111001000110100101…
…101111100010000110
312212021001210212011121
4321012211233202012
52001032320410121
644100040224154
74300262023525
oct710645574206
9185231725147
1061313841286
1124004079505
12ba71a6b05a
135a21a00279
142d791784bc
1518dcc79141
hexe4696f886

61313841286 has 4 divisors (see below), whose sum is σ = 91970761932. Its totient is φ = 30656920642.

The previous prime is 61313841269. The next prime is 61313841287. The reversal of 61313841286 is 68214831316.

61313841286 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61313841287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15328460320 + ... + 15328460323.

It is an arithmetic number, because the mean of its divisors is an integer number (22992690483).

Almost surely, 261313841286 is an apocalyptic number.

61313841286 is a deficient number, since it is larger than the sum of its proper divisors (30656920646).

61313841286 is a wasteful number, since it uses less digits than its factorization.

61313841286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30656920645.

The product of its digits is 165888, while the sum is 43.

The spelling of 61313841286 in words is "sixty-one billion, three hundred thirteen million, eight hundred forty-one thousand, two hundred eighty-six".

Divisors: 1 2 30656920643 61313841286