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142938807351 = 347646269117
BaseRepresentation
bin1000010100011111010…
…0010001110000110111
3111122221122120202112220
42011013310101300313
54320214313313401
6145355402413423
713220104546524
oct2050764216067
9448848522486
10142938807351
115569025964a
1223851b01273
131062c69c762
146cbda6614b
153ab8c29336
hex2147d11c37

142938807351 has 4 divisors (see below), whose sum is σ = 190585076472. Its totient is φ = 95292538232.

The previous prime is 142938807301. The next prime is 142938807419. The reversal of 142938807351 is 153708839241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142938807351 - 221 = 142936710199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142938807294 and 142938807303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142938807301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23823134556 + ... + 23823134561.

It is an arithmetic number, because the mean of its divisors is an integer number (47646269118).

Almost surely, 2142938807351 is an apocalyptic number.

142938807351 is a deficient number, since it is larger than the sum of its proper divisors (47646269121).

142938807351 is an equidigital number, since it uses as much as digits as its factorization.

142938807351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47646269120.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 142938807351 in words is "one hundred forty-two billion, nine hundred thirty-eight million, eight hundred seven thousand, three hundred fifty-one".

Divisors: 1 3 47646269117 142938807351