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988480217493 = 32162287676771
BaseRepresentation
bin11100110001001100000…
…00110010000110010101
310111111102212220211200200
432120212000302012111
5112143401413424433
62034033533331113
7131262314134206
oct16304600620625
93444385824620
10988480217493
1135123734988a
1213b6a8036a99
13722a07809a2
1435bb25115ad
151aaa5252613
hexe626032195

988480217493 has 12 divisors (see below), whose sum is σ = 1427815666368. Its totient is φ = 658981777320.

The previous prime is 988480217471. The next prime is 988480217521. The reversal of 988480217493 is 394712084889.

988480217493 is a `hidden beast` number, since 9 + 88 + 48 + 0 + 21 + 7 + 493 = 666.

It is not a de Polignac number, because 988480217493 - 212 = 988480213397 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 988480217493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988480217443) 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, 1122198 + ... + 1798968.

It is an arithmetic number, because the mean of its divisors is an integer number (118984638864).

Almost surely, 2988480217493 is an apocalyptic number.

It is an amenable number.

988480217493 is a deficient number, since it is larger than the sum of its proper divisors (439335448875).

988480217493 is a wasteful number, since it uses less digits than its factorization.

988480217493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839064 (or 839061 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 988480217493 in words is "nine hundred eighty-eight billion, four hundred eighty million, two hundred seventeen thousand, four hundred ninety-three".

Divisors: 1 3 9 162287 486861 676771 1460583 2030313 6090939 109831135277 329493405831 988480217493