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142451646353 = 1731326771593
BaseRepresentation
bin1000010010101011000…
…1111001111110010001
3111121200200220102021222
42010222301321332101
54313220110140403
6145235201054425
713202041005212
oct2045261717621
9447620812258
10142451646353
1155460271355
1223736927415
1310582791503
146c75093409
153a8b09a338
hex212ac79f91

142451646353 has 8 divisors (see below), whose sum is σ = 151313049288. Its totient is φ = 133643787264.

The previous prime is 142451646331. The next prime is 142451646361. The reversal of 142451646353 is 353646154241.

142451646353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 40132910224 + 102318736129 = 200332^2 + 319873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142451646353 - 26 = 142451646289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142451646313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13380476 + ... + 13391117.

It is an arithmetic number, because the mean of its divisors is an integer number (18914131161).

Almost surely, 2142451646353 is an apocalyptic number.

It is an amenable number.

142451646353 is a deficient number, since it is larger than the sum of its proper divisors (8861402935).

142451646353 is a wasteful number, since it uses less digits than its factorization.

142451646353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26771923.

The product of its digits is 1036800, while the sum is 44.

The spelling of 142451646353 in words is "one hundred forty-two billion, four hundred fifty-one million, six hundred forty-six thousand, three hundred fifty-three".

Divisors: 1 17 313 5321 26771593 455117081 8379508609 142451646353