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317160161442 = 23397527311483
BaseRepresentation
bin1001001110110000011…
…10000000000010100010
31010022122102210112212000
410213120032000002202
520144021000131232
6401411254544430
731625344614465
oct4473016000242
91108572715760
10317160161442
11112563708603
1251574368116
1323ba606b0a7
14114ca1d32dc
1583b3e7127c
hex49d83800a2

317160161442 has 64 divisors (see below), whose sum is σ = 712263404160. Its totient is φ = 104601203712.

The previous prime is 317160161407. The next prime is 317160161443. The reversal of 317160161442 is 244161061713.

317160161442 is a `hidden beast` number, since 3 + 1 + 7 + 1 + 601 + 6 + 1 + 4 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 317160161397 and 317160161406.

It is not an unprimeable number, because it can be changed into a prime (317160161443) 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 31 ways as a sum of consecutive naturals, for example, 27614233 + ... + 27625715.

It is an arithmetic number, because the mean of its divisors is an integer number (11129115690).

Almost surely, 2317160161442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317160161442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356131702080).

317160161442 is an abundant number, since it is smaller than the sum of its proper divisors (395103242718).

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

317160161442 is a wasteful number, since it uses less digits than its factorization.

317160161442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16864 (or 16858 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 317160161442 in words is "three hundred seventeen billion, one hundred sixty million, one hundred sixty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 97 194 291 582 873 1746 2619 5238 5273 10546 11483 15819 22966 31638 34449 47457 68898 94914 103347 142371 206694 284742 310041 511481 620082 1022962 1113851 1534443 2227702 3068886 3341553 4603329 6683106 9206658 10024659 13809987 20049318 27619974 30073977 60147954 60549859 121099718 181649577 363299154 544948731 1089897462 1634846193 3269692386 5873336323 11746672646 17620008969 35240017938 52860026907 105720053814 158580080721 317160161442