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488956887621 = 32509106735841
BaseRepresentation
bin1110001110110000001…
…10100000001001000101
31201202002020122110221100
413013120012200021011
531002340430400441
61012342415010313
750216543653416
oct7073006401105
91652066573840
10488956887621
11179402463744
127a91a809999
133715430a057
141994672d80d
15cabb3c9cb6
hex71d81a0245

488956887621 has 12 divisors (see below), whose sum is σ = 707658632460. Its totient is φ = 325330840320.

The previous prime is 488956887619. The next prime is 488956887623. The reversal of 488956887621 is 126788659884.

488956887621 is a `hidden beast` number, since 488 + 9 + 5 + 6 + 8 + 87 + 62 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (488956887619) and next prime (488956887623).

It can be written as a sum of positive squares in 2 ways, for example, as 180888596100 + 308068291521 = 425310^2 + 555039^2 .

It is not a de Polignac number, because 488956887621 - 21 = 488956887619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 488956887621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488956887623) 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, 53363340 + ... + 53372501.

It is an arithmetic number, because the mean of its divisors is an integer number (58971552705).

Almost surely, 2488956887621 is an apocalyptic number.

It is an amenable number.

488956887621 is a deficient number, since it is larger than the sum of its proper divisors (218701744839).

488956887621 is a wasteful number, since it uses less digits than its factorization.

488956887621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106736356 (or 106736353 counting only the distinct ones).

The product of its digits is 371589120, while the sum is 72.

The spelling of 488956887621 in words is "four hundred eighty-eight billion, nine hundred fifty-six million, eight hundred eighty-seven thousand, six hundred twenty-one".

Divisors: 1 3 9 509 1527 4581 106735841 320207523 960622569 54328543069 162985629207 488956887621