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135287792641 = 1944587159697
BaseRepresentation
bin111110111111111000…
…1111110010000000001
3110221012102211221110201
41331333301332100001
54204032133331031
6142052250525201
712526362156301
oct1757761762001
9427172757421
10135287792641
1152414482aa1
1222277736801
13c9b0548a11
146795883601
1537bc1b6d61
hex1f7fc7e401

135287792641 has 8 divisors (see below), whose sum is σ = 142412288480. Its totient is φ = 128163705408.

The previous prime is 135287792611. The next prime is 135287792657. The reversal of 135287792641 is 146297782531.

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 135287792641 - 217 = 135287661569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135287792611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767305 + ... + 927001.

It is an arithmetic number, because the mean of its divisors is an integer number (17801536060).

Almost surely, 2135287792641 is an apocalyptic number.

It is an amenable number.

135287792641 is a deficient number, since it is larger than the sum of its proper divisors (7124495839).

135287792641 is a wasteful number, since it uses less digits than its factorization.

135287792641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204303.

The product of its digits is 5080320, while the sum is 55.

The spelling of 135287792641 in words is "one hundred thirty-five billion, two hundred eighty-seven million, seven hundred ninety-two thousand, six hundred forty-one".

Divisors: 1 19 44587 159697 847153 3034243 7120410139 135287792641