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142354560026621 = 1946739174095881
BaseRepresentation
bin100000010111100010000000…
…111110111000011111111101
3200200000222000001022221111002
4200113202000332320133331
5122124314114331322441
61222432440531540045
741661530463220505
oct4027420076703775
9620028001287432
10142354560026621
11413a4258a60918
1213b7132615a625
136157c924a5c97
142721dd70a2a05
15116ce7ea16b9b
hex817880fb87fd

142354560026621 has 16 divisors (see below), whose sum is σ = 150206150727360. Its totient is φ = 134539041479040.

The previous prime is 142354560026597. The next prime is 142354560026641. The reversal of 142354560026621 is 126620065453241.

It is a cyclic number.

It is not a de Polignac number, because 142354560026621 - 210 = 142354560025597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142354560026641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32707601 + ... + 36803481.

It is an arithmetic number, because the mean of its divisors is an integer number (9387884420460).

Almost surely, 2142354560026621 is an apocalyptic number.

It is an amenable number.

142354560026621 is a deficient number, since it is larger than the sum of its proper divisors (7851590700739).

142354560026621 is a wasteful number, since it uses less digits than its factorization.

142354560026621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100284.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 142354560026621 in words is "one hundred forty-two trillion, three hundred fifty-four billion, five hundred sixty million, twenty-six thousand, six hundred twenty-one".

Divisors: 1 19 467 3917 8873 74423 1829239 4095881 34755541 77821739 1912776427 16043565877 36342752113 304827751663 7492345264559 142354560026621