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142454357643 = 3137946236403
BaseRepresentation
bin1000010010101011110…
…0001111111010001011
3111121200220000011111010
42010222330033322023
54313221303421033
6145235335135003
713202103026643
oct2045274177213
9447626004433
10142454357643
1155461853394
1223737814463
1310583200620
146c7559b523
153a8b433863
hex212af0fe8b

142454357643 has 16 divisors (see below), whose sum is σ = 207139089920. Its totient is φ = 86554544544.

The previous prime is 142454357627. The next prime is 142454357651. The reversal of 142454357643 is 346753454241.

It is not a de Polignac number, because 142454357643 - 24 = 142454357627 is a prime.

It is a super-2 number, since 2×1424543576432 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142454357592 and 142454357601.

It is not an unprimeable number, because it can be changed into a prime (142454357623) 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, 23115121 + ... + 23121282.

It is an arithmetic number, because the mean of its divisors is an integer number (12946193120).

Almost surely, 2142454357643 is an apocalyptic number.

142454357643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142454357643 is a deficient number, since it is larger than the sum of its proper divisors (64684732277).

142454357643 is a wasteful number, since it uses less digits than its factorization.

142454357643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46236498.

The product of its digits is 4838400, while the sum is 48.

The spelling of 142454357643 in words is "one hundred forty-two billion, four hundred fifty-four million, three hundred fifty-seven thousand, six hundred forty-three".

Divisors: 1 3 13 39 79 237 1027 3081 46236403 138709209 601073239 1803219717 3652675837 10958027511 47484785881 142454357643