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15983428209396 = 2231331952350783
BaseRepresentation
bin1110100010010110111010…
…0011111000101011110100
32002121000000121000121200020
43220211232203320223310
54043333030110200041
653554404025045140
73236523152066244
oct350455643705364
962530017017606
1015983428209396
11510259659a95a
1219618419267b0
138bc30013245b
143d3860067b24
151cab740da866
hexe896e8f8af4

15983428209396 has 12 divisors (see below), whose sum is σ = 37294665821952. Its totient is φ = 5327809403128.

The previous prime is 15983428209319. The next prime is 15983428209403. The reversal of 15983428209396 is 69390282438951.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 15983428209396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665976175380 + ... + 665976175403.

It is an arithmetic number, because the mean of its divisors is an integer number (3107888818496).

Almost surely, 215983428209396 is an apocalyptic number.

It is an amenable number.

15983428209396 is an abundant number, since it is smaller than the sum of its proper divisors (21311237612556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15983428209396 is a wasteful number, since it uses less digits than its factorization.

15983428209396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331952350790 (or 1331952350788 counting only the distinct ones).

The product of its (nonzero) digits is 201553920, while the sum is 69.

The spelling of 15983428209396 in words is "fifteen trillion, nine hundred eighty-three billion, four hundred twenty-eight million, two hundred nine thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 1331952350783 2663904701566 3995857052349 5327809403132 7991714104698 15983428209396