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135937371469 = 31101173250963
BaseRepresentation
bin111111010011001111…
…1111010110101001101
3110222212201010222002211
41332212133322311031
54211344431341334
6142240533350421
712551440410154
oct1764637726515
9428781128084
10135937371469
11527181141a9
1222419198411
13ca84cb30a3
146817c5459b
153809229a64
hex1fa67fad4d

135937371469 has 16 divisors (see below), whose sum is σ = 142531490304. Its totient is φ = 129496392000.

The previous prime is 135937371457. The next prime is 135937371491. The reversal of 135937371469 is 964173739531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-135937371469 is a prime.

It is a super-2 number, since 2×1359373714692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135937371499) 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, 416182 + ... + 667144.

It is an arithmetic number, because the mean of its divisors is an integer number (8908218144).

Almost surely, 2135937371469 is an apocalyptic number.

It is an amenable number.

135937371469 is a deficient number, since it is larger than the sum of its proper divisors (6594118835).

135937371469 is a wasteful number, since it uses less digits than its factorization.

135937371469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251268.

The product of its digits is 12859560, while the sum is 58.

The spelling of 135937371469 in words is "one hundred thirty-five billion, nine hundred thirty-seven million, three hundred seventy-one thousand, four hundred sixty-nine".

Divisors: 1 31 101 173 3131 5363 17473 250963 541663 7779853 25347263 43416599 785765153 1345914569 4385076499 135937371469