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1980218414 = 24498812503
BaseRepresentation
bin111011000000111…
…1011110000101110
312010000010111222202
41312001323300232
513023413442124
6524254541502
7100033402346
oct16601736056
95100114882
101980218414
11926866449
12473207892
1325733c495
1414adc9d26
15b8ca65ae
hex7607bc2e

1980218414 has 16 divisors (see below), whose sum is σ = 2981512800. Its totient is φ = 986388480.

The previous prime is 1980218411. The next prime is 1980218453. The reversal of 1980218414 is 4148120891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980218411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789887 + ... + 792389.

It is an arithmetic number, because the mean of its divisors is an integer number (186344550).

Almost surely, 21980218414 is an apocalyptic number.

1980218414 is a deficient number, since it is larger than the sum of its proper divisors (1001294386).

1980218414 is a wasteful number, since it uses less digits than its factorization.

1980218414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 1980218414 is about 44499.6450997084. The cubic root of 1980218414 is about 1255.7534063436.

The spelling of 1980218414 in words is "one billion, nine hundred eighty million, two hundred eighteen thousand, four hundred fourteen".

Divisors: 1 2 449 881 898 1762 2503 5006 395569 791138 1123847 2205143 2247694 4410286 990109207 1980218414