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131764961547664 = 24691241532
BaseRepresentation
bin11101111101011011101011…
…101110100001010110010000
3122021112121101201112122121121
4131331123223232201112100
5114232314120124011124
61144123553201132024
736516463403265334
oct3575335356412620
9567477351478547
10131764961547664
1138a9122a762a95
1212940b2302a014
13586a4c8632453
14247765b2d17c4
151037797ec82e4
hex77d6ebba1590

131764961547664 has 45 divisors (see below), whose sum is σ = 255726180666369. Its totient is φ = 65771296225920.

The previous prime is 131764961547601. The next prime is 131764961547811. The reversal of 131764961547664 is 466745169467131.

The square root of 131764961547664 is 11478892.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1581608064400 + 130183353483264 = 1257620^2 + 11409792^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131764961547593 and 131764961547602.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31727655412 + ... + 31727659564.

Almost surely, 2131764961547664 is an apocalyptic number.

131764961547664 is the 11478892-nd square number.

It is an amenable number.

131764961547664 is a deficient number, since it is larger than the sum of its proper divisors (123961219118705).

131764961547664 is an frugal number, since it uses more digits than its factorization.

131764961547664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696 (or 4846 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 70.

The spelling of 131764961547664 in words is "one hundred thirty-one trillion, seven hundred sixty-four billion, nine hundred sixty-one million, five hundred forty-seven thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 691 1382 2764 4153 5528 8306 11056 16612 33224 66448 477481 954962 1909924 2869723 3819848 5739446 7639696 11478892 17247409 22957784 34494818 45915568 68989636 137979272 275958544 1982978593 3965957186 7931914372 11917959619 15863828744 23835919238 31727657488 47671838476 95343676952 190687353904 8235310096729 16470620193458 32941240386916 65882480773832 131764961547664