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120145031541 = 3361353206651
BaseRepresentation
bin110111111100100110…
…0111011000101110101
3102111010010001222101000
41233321030323011311
53432024112002131
6131105512553513
711452206626613
oct1577114730565
9374103058330
10120145031541
1146a538134a7
121b3503b2899
13b439266952
145b5a6da6b3
1531d2aa2ce6
hex1bf933b175

120145031541 has 32 divisors (see below), whose sum is σ = 181423923840. Its totient is φ = 78560064000.

The previous prime is 120145031459. The next prime is 120145031561. The reversal of 120145031541 is 145130541021.

120145031541 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 4 + 503 + 154 + 1 = 666.

It is not a de Polignac number, because 120145031541 - 214 = 120145015157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120145031561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 478066 + ... + 684716.

It is an arithmetic number, because the mean of its divisors is an integer number (5669497620).

Almost surely, 2120145031541 is an apocalyptic number.

It is an amenable number.

120145031541 is a deficient number, since it is larger than the sum of its proper divisors (61278892299).

120145031541 is a wasteful number, since it uses less digits than its factorization.

120145031541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207074 (or 207068 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 120145031541 its reverse (145130541021), we get a palindrome (265275572562).

The spelling of 120145031541 in words is "one hundred twenty billion, one hundred forty-five million, thirty-one thousand, five hundred forty-one".

Divisors: 1 3 9 27 61 183 353 549 1059 1647 3177 9531 21533 64599 193797 206651 581391 619953 1859859 5579577 12605711 37817133 72947803 113451399 218843409 340354197 656530227 1969590681 4449815983 13349447949 40048343847 120145031541