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142030340431 = 71511795771301
BaseRepresentation
bin1000010001000110101…
…0110000000101001111
3111120121100010212012221
42010101222300011033
54311334231343211
6145125311040211
713155433655110
oct2042152600517
9446540125187
10142030340431
1155264473a41
1223639810067
1310516400275
146c35144207
153a640c8c71
hex2111ab014f

142030340431 has 32 divisors (see below), whose sum is σ = 164719457280. Its totient is φ = 119957760000.

The previous prime is 142030340429. The next prime is 142030340447. The reversal of 142030340431 is 134043030241.

It is a cyclic number.

It is not a de Polignac number, because 142030340431 - 21 = 142030340429 is a prime.

It is a super-2 number, since 2×1420303404312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142030340396 and 142030340405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142030340411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109169481 + ... + 109170781.

It is an arithmetic number, because the mean of its divisors is an integer number (5147483040).

Almost surely, 2142030340431 is an apocalyptic number.

142030340431 is a deficient number, since it is larger than the sum of its proper divisors (22689116849).

142030340431 is a wasteful number, since it uses less digits than its factorization.

142030340431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 142030340431 its reverse (134043030241), we get a palindrome (276073370672).

The spelling of 142030340431 in words is "one hundred forty-two billion, thirty million, three hundred forty thousand, four hundred thirty-one".

Divisors: 1 7 151 179 577 1057 1253 1301 4039 9107 27029 87127 103283 189203 196451 232879 609889 722981 750677 1375157 1630153 5254739 15595733 35164729 109170131 113352227 134371183 246153103 793465589 940598281 20290048633 142030340431