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802653437485 = 5677237120661
BaseRepresentation
bin10111010111000011101…
…11110111111000101101
32211201210022001022221001
423223201313313320231
5101122313234444420
61412422304440301
7111663333435244
oct13534167677055
92751708038831
10802653437485
1128a448a38639
1210b687019091
135a8c790c523
142abc491795b
1515d2b22ab0a
hexbae1df7e2d

802653437485 has 8 divisors (see below), whose sum is σ = 964606853016. Its totient is φ = 641174264640.

The previous prime is 802653437483. The next prime is 802653437507. The reversal of 802653437485 is 584734356208.

It can be written as a sum of positive squares in 4 ways, for example, as 380814878404 + 421838559081 = 617102^2 + 649491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 802653437485 - 21 = 802653437483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802653437483) 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, 118556946 + ... + 118563715.

It is an arithmetic number, because the mean of its divisors is an integer number (120575856627).

Almost surely, 2802653437485 is an apocalyptic number.

It is an amenable number.

802653437485 is a deficient number, since it is larger than the sum of its proper divisors (161953415531).

802653437485 is a wasteful number, since it uses less digits than its factorization.

802653437485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237121343.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 802653437485 in words is "eight hundred two billion, six hundred fifty-three million, four hundred thirty-seven thousand, four hundred eighty-five".

Divisors: 1 5 677 3385 237120661 1185603305 160530687497 802653437485