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61010853357 = 379257429761
BaseRepresentation
bin111000110100100001…
…111011110111101101
312211110221200110212110
4320310201323313231
51444422234301412
644010014154233
74256622461016
oct706441736755
9184427613773
1061010853357
1123969044163
12b9a84b2979
1359a3cc747c
142d4ac2800d
1518c1379d3c
hexe3487bded

61010853357 has 8 divisors (see below), whose sum is σ = 82377523840. Its totient is φ = 40159042560.

The previous prime is 61010853349. The next prime is 61010853367. The reversal of 61010853357 is 75335801016.

It is a happy number.

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

It is not a de Polignac number, because 61010853357 - 23 = 61010853349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010853307) 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, 128714644 + ... + 128715117.

It is an arithmetic number, because the mean of its divisors is an integer number (10297190480).

Almost surely, 261010853357 is an apocalyptic number.

It is an amenable number.

61010853357 is a deficient number, since it is larger than the sum of its proper divisors (21366670483).

61010853357 is a wasteful number, since it uses less digits than its factorization.

61010853357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257429843.

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 61010853357 in words is "sixty-one billion, ten million, eight hundred fifty-three thousand, three hundred fifty-seven".

Divisors: 1 3 79 237 257429761 772289283 20336951119 61010853357