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142301718441 = 321257432
BaseRepresentation
bin1000010010000111010…
…1111110011110101001
3111121022020210021212100
42010201311332132221
54312413214442231
6145212243404013
713165240435461
oct2044165763651
9447266707770
10142301718441
1155393679293
12236b4683609
131055a6b937c
146c5d1c6ba1
153a7cd321e6
hex2121d7e7a9

142301718441 has 9 divisors (see below), whose sum is σ = 205548561309. Its totient is φ = 94867057836.

The previous prime is 142301718431. The next prime is 142301718443. The reversal of 142301718441 is 144817103241.

The square root of 142301718441 is 377229.

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

142301718441 is a `hidden beast` number, since 1 + 42 + 3 + 0 + 171 + 8 + 441 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 142301718441 - 213 = 142301710249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142301718396 and 142301718405.

It is not an unprimeable number, because it can be changed into a prime (142301718443) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1068816 + ... + 1194558.

Almost surely, 2142301718441 is an apocalyptic number.

142301718441 is the 377229-th square number.

142301718441 is the 188615-th centered octagonal number.

It is an amenable number.

142301718441 is a deficient number, since it is larger than the sum of its proper divisors (63246842868).

142301718441 is an frugal number, since it uses more digits than its factorization.

142301718441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251492 (or 125746 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

Multiplying 142301718441 by its sum of digits (36), we get a square (5122861863876 = 22633742).

The spelling of 142301718441 in words is "one hundred forty-two billion, three hundred one million, seven hundred eighteen thousand, four hundred forty-one".

Divisors: 1 3 9 125743 377229 1131687 15811302049 47433906147 142301718441