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142852240230561 = 34312428392
BaseRepresentation
bin100000011110110001100001…
…000010001100100010100001
3200201210112121020102210210000
4200132301201002030202201
5122210442341444334221
61223453225125530213
742042506453156301
oct4036614102144241
9621715536383700
10142852240230561
1141576327507194
121403187a273969
136192ba6b3a264
14273c12a183601
15117adabb67e26
hex81ec6108c8a1

142852240230561 has 45 divisors (see below), whose sum is σ = 220507520402433. Its totient is φ = 92160584258040.

The previous prime is 142852240230551. The next prime is 142852240230599. The reversal of 142852240230561 is 165032042258241.

The square root of 142852240230561 is 11952081.

It is a perfect power (a square), and thus also a powerful number.

142852240230561 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 5 + 22 + 40 + 23 + 0 + 561 = 666.

It is not a de Polignac number, because 142852240230561 - 211 = 142852240228513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142852240230541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3334609180 + ... + 3334652018.

Almost surely, 2142852240230561 is an apocalyptic number.

142852240230561 is the 11952081-st square number.

142852240230561 is the 5976041-st centered octagonal number.

It is an amenable number.

142852240230561 is a deficient number, since it is larger than the sum of its proper divisors (77655280171872).

142852240230561 is an frugal number, since it uses more digits than its factorization.

142852240230561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85752 (or 42873 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 142852240230561 in words is "one hundred forty-two trillion, eight hundred fifty-two billion, two hundred forty million, two hundred thirty thousand, five hundred sixty-one".

Divisors: 1 3 9 27 31 81 93 279 837 961 2511 2883 8649 25947 42839 77841 128517 385551 1156653 1328009 3469959 3984027 11952081 35856243 41168279 107568729 123504837 370514511 1111543533 1835179921 3334630599 5505539763 16516619289 49549857867 56890577551 148649573601 170671732653 512015197959 1536045593877 1763607904081 4608136781631 5290823712243 15872471136729 47617413410187 142852240230561