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60331242640 = 24519277143291
BaseRepresentation
bin111000001100000001…
…011011010010010000
312202201120212200020011
4320030001123102100
51442024244231030
643414335524304
74234031046454
oct701401332220
9182646780204
1060331242640
112364a460609
12b838989694
1358c6276756
142cc487a664
151881883b2a
hexe0c05b490

60331242640 has 80 divisors (see below), whose sum is σ = 148186854720. Its totient is φ = 22779671040.

The previous prime is 60331242619. The next prime is 60331242641. The reversal of 60331242640 is 4624213306.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (60331242641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349395 + ... + 492685.

It is an arithmetic number, because the mean of its divisors is an integer number (1852335684).

Almost surely, 260331242640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60331242640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74093427360).

60331242640 is an abundant number, since it is smaller than the sum of its proper divisors (87855612080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

60331242640 is a wasteful number, since it uses less digits than its factorization.

60331242640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143600 (or 143594 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 60331242640 its reverse (4624213306), we get a palindrome (64955455946).

The spelling of 60331242640 in words is "sixty billion, three hundred thirty-one million, two hundred forty-two thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 277 304 380 554 760 1108 1385 1520 2216 2770 4432 5263 5540 10526 11080 21052 22160 26315 42104 52630 84208 105260 143291 210520 286582 421040 573164 716455 1146328 1432910 2292656 2722529 2865820 5445058 5731640 10890116 11463280 13612645 21780232 27225290 39691607 43560464 54450580 79383214 108901160 158766428 198458035 217802320 317532856 396916070 635065712 754140533 793832140 1508281066 1587664280 3016562132 3175328560 3770702665 6033124264 7541405330 12066248528 15082810660 30165621320 60331242640