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142300304131221 = 3271222692181739
BaseRepresentation
bin100000010110101111011111…
…000101000100010010010101
3200122211202221212021212220200
4200112233133011010102111
5122122422010324144341
61222351505055451113
741654600122553445
oct4026573705042225
9618752855255820
10142300304131221
1141383246a14645
1213b62903b26a99
136152b26ab9972
14271d52b44a125
15116b856700db6
hex816bdf144495

142300304131221 has 12 divisors (see below), whose sum is σ = 208439882108640. Its totient is φ = 93530716329960.

The previous prime is 142300304131133. The next prime is 142300304131289. The reversal of 142300304131221 is 122131403003241.

142300304131221 is a `hidden beast` number, since 1 + 4 + 2 + 3 + 0 + 0 + 304 + 131 + 221 = 666.

It is not a de Polignac number, because 142300304131221 - 221 = 142300302034069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142300304130221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111346090231 + ... + 111346091508.

It is an arithmetic number, because the mean of its divisors is an integer number (17369990175720).

Almost surely, 2142300304131221 is an apocalyptic number.

It is an amenable number.

142300304131221 is a deficient number, since it is larger than the sum of its proper divisors (66139577977419).

142300304131221 is a wasteful number, since it uses less digits than its factorization.

142300304131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222692181816 (or 222692181813 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 142300304131221 its reverse (122131403003241), we get a palindrome (264431707134462).

The spelling of 142300304131221 in words is "one hundred forty-two trillion, three hundred billion, three hundred four million, one hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 3 9 71 213 639 222692181739 668076545217 2004229635651 15811144903469 47433434710407 142300304131221