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13988373570 = 234517269597
BaseRepresentation
bin11010000011100010…
…11010010001000010
31100002212121000010000
431001301122101002
5212122010423240
610232015220430
71003434133143
oct150161322102
940085530100
1013988373570
115a29088116
122864817716
13141c09ac32
14969b2baca
1556d0d8430
hex341c5a442

13988373570 has 40 divisors (see below), whose sum is σ = 37613184444. Its totient is φ = 3730232736.

The previous prime is 13988373547. The next prime is 13988373571. The reversal of 13988373570 is 7537388931.

13988373570 is a `hidden beast` number, since 1 + 39 + 8 + 8 + 37 + 3 + 570 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12638031561 + 1350342009 = 112419^2 + 36747^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (13988373571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8633989 + ... + 8635608.

Almost surely, 213988373570 is an apocalyptic number.

13988373570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13988373570 is an abundant number, since it is smaller than the sum of its proper divisors (23624810874).

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

13988373570 is a wasteful number, since it uses less digits than its factorization.

13988373570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17269616 (or 17269607 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 13988373570 in words is "thirteen billion, nine hundred eighty-eight million, three hundred seventy-three thousand, five hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 17269597 34539194 51808791 86347985 103617582 155426373 172695970 259043955 310852746 466279119 518087910 777131865 932558238 1398837357 1554263730 2331395595 2797674714 4662791190 6994186785 13988373570