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730138597741 = 7289167424581
BaseRepresentation
bin10101001111111111010…
…01101101100101101101
32120210121121120210110201
422213333221231211231
543430310440111431
61315230540033501
7103515341452300
oct12477751554555
92523547523421
10730138597741
11261717227213
12b9609b32891
1353b0c46b027
14274a5d0ab37
1513ed4e5c461
hexa9ffa6d96d

730138597741 has 12 divisors (see below), whose sum is σ = 858888105660. Its totient is φ = 618801247680.

The previous prime is 730138597739. The next prime is 730138597751. The reversal of 730138597741 is 147795831037.

It can be written as a sum of positive squares in 2 ways, for example, as 452082761641 + 278055836100 = 672371^2 + 527310^2 .

It is not a de Polignac number, because 730138597741 - 21 = 730138597739 is a prime.

It is a super-2 number, since 2×7301385977412 (a number of 25 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 (730138597751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83707930 + ... + 83716651.

It is an arithmetic number, because the mean of its divisors is an integer number (71574008805).

Almost surely, 2730138597741 is an apocalyptic number.

It is an amenable number.

730138597741 is a deficient number, since it is larger than the sum of its proper divisors (128749507919).

730138597741 is a wasteful number, since it uses less digits than its factorization.

730138597741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167424684 (or 167424677 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 730138597741 in words is "seven hundred thirty billion, one hundred thirty-eight million, five hundred ninety-seven thousand, seven hundred forty-one".

Divisors: 1 7 49 89 623 4361 167424581 1171972067 8203804469 14900787709 104305513963 730138597741