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1948628495 = 51137957557
BaseRepresentation
bin111010000100101…
…1011011000001111
312000210200120202202
41310021123120033
512442322102440
6521205512115
766201032432
oct16411333017
95023616682
101948628495
1190aa4a480
1246471263b
1325092b918
14146b25819
15b6116615
hex7425b60f

1948628495 has 16 divisors (see below), whose sum is σ = 2619878688. Its totient is φ = 1378880640.

The previous prime is 1948628491. The next prime is 1948628503. The reversal of 1948628495 is 5948268491.

It is not a de Polignac number, because 1948628495 - 22 = 1948628491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1948628495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948628491) 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, 476744 + ... + 480813.

It is an arithmetic number, because the mean of its divisors is an integer number (163742418).

Almost surely, 21948628495 is an apocalyptic number.

1948628495 is a deficient number, since it is larger than the sum of its proper divisors (671250193).

1948628495 is a wasteful number, since it uses less digits than its factorization.

1948628495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957610.

The product of its digits is 4976640, while the sum is 56.

The square root of 1948628495 is about 44143.2723639741. The cubic root of 1948628495 is about 1249.0400085218.

The spelling of 1948628495 in words is "one billion, nine hundred forty-eight million, six hundred twenty-eight thousand, four hundred ninety-five".

Divisors: 1 5 11 37 55 185 407 2035 957557 4787785 10533127 35429609 52665635 177148045 389725699 1948628495