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142696507397 = 189477531351
BaseRepresentation
bin1000010011100101011…
…1111110100000000101
3111122022202122122111112
42010321113332200011
54314220301214042
6145315345214405
713211103204623
oct2047127764005
9448282578445
10142696507397
1155576505054
12237a4931405
13105c1424ac2
146c997d2513
153aa2816982
hex21395fe805

142696507397 has 4 divisors (see below), whose sum is σ = 142704057696. Its totient is φ = 142688957100.

The previous prime is 142696507381. The next prime is 142696507423. The reversal of 142696507397 is 793705696241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142696507397 - 24 = 142696507381 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 (142696507997) 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, 3746729 + ... + 3784622.

It is an arithmetic number, because the mean of its divisors is an integer number (35676014424).

Almost surely, 2142696507397 is an apocalyptic number.

It is an amenable number.

142696507397 is a deficient number, since it is larger than the sum of its proper divisors (7550299).

142696507397 is an equidigital number, since it uses as much as digits as its factorization.

142696507397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550298.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 142696507397 in words is "one hundred forty-two billion, six hundred ninety-six million, five hundred seven thousand, three hundred ninety-seven".

Divisors: 1 18947 7531351 142696507397