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660129483 = 31319890863
BaseRepresentation
bin100111010110001…
…100011011001011
31201000011001102010
4213112030123023
52322443120413
6145300511003
722234002516
oct4726143313
91630131363
10660129483
11309698062
121650ab463
13a69bc780
1463959d7d
153ce48dc3
hex2758c6cb

660129483 has 16 divisors (see below), whose sum is σ = 997767680. Its totient is φ = 384852384.

The previous prime is 660129473. The next prime is 660129541. The reversal of 660129483 is 384921066.

It is not a de Polignac number, because 660129483 - 26 = 660129419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (660129433) 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, 444691 + ... + 446172.

It is an arithmetic number, because the mean of its divisors is an integer number (62360480).

Almost surely, 2660129483 is an apocalyptic number.

660129483 is a deficient number, since it is larger than the sum of its proper divisors (337638197).

660129483 is a wasteful number, since it uses less digits than its factorization.

660129483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890898.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 660129483 is about 25692.9850932117. The cubic root of 660129483 is about 870.7157025203.

The spelling of 660129483 in words is "six hundred sixty million, one hundred twenty-nine thousand, four hundred eighty-three".

Divisors: 1 3 13 19 39 57 247 741 890863 2672589 11581219 16926397 34743657 50779191 220043161 660129483