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140045526361 = 1361971820641
BaseRepresentation
bin1000001001101101011…
…1010010010101011001
3111101111000100212011201
42002123113102111121
54243303123320421
6144200325354201
713055313222136
oct2023327222531
9441430325151
10140045526361
1154436059834
1223184b68961
131028b142080
146ac76bd58d
153999c15b91
hex209b5d2559

140045526361 has 16 divisors (see below), whose sum is σ = 154871091088. Its totient is φ = 125842636800.

The previous prime is 140045526353. The next prime is 140045526373. The reversal of 140045526361 is 163625540041.

It can be written as a sum of positive squares in 8 ways, for example, as 10395841600 + 129649684761 = 101960^2 + 360069^2 .

It is a cyclic number.

It is not a de Polignac number, because 140045526361 - 23 = 140045526353 is a prime.

It is a super-2 number, since 2×1400455263612 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140045526361.

It is not an unprimeable number, because it can be changed into a prime (140045526301) 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, 833400 + ... + 987241.

It is an arithmetic number, because the mean of its divisors is an integer number (9679443193).

Almost surely, 2140045526361 is an apocalyptic number.

It is an amenable number.

140045526361 is a deficient number, since it is larger than the sum of its proper divisors (14825564727).

140045526361 is a wasteful number, since it uses less digits than its factorization.

140045526361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820812.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 140045526361 in words is "one hundred forty billion, forty-five million, five hundred twenty-six thousand, three hundred sixty-one".

Divisors: 1 13 61 97 793 1261 5917 76921 1820641 23668333 111059101 176602177 1443768313 2295828301 10772732797 140045526361