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1378185053348 = 2223109137433691
BaseRepresentation
bin10100000011100010001…
…110110000010010100100
311212202100002022200110202
4110003202032300102210
5140040010333201343
62533043544410032
7201366465444335
oct24034216602244
94782302280422
101378185053348
11491537595a64
121a3127476918
139cc68207c0c
144a9c127a28c
1525cb2dd6db8
hex140e23b04a4

1378185053348 has 24 divisors (see below), whose sum is σ = 2539774628160. Its totient is φ = 653084894880.

The previous prime is 1378185053347. The next prime is 1378185053353. The reversal of 1378185053348 is 8433505818731.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1378185053293 and 1378185053302.

It is not an unprimeable number, because it can be changed into a prime (1378185053347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68706818 + ... + 68726873.

It is an arithmetic number, because the mean of its divisors is an integer number (105823942840).

Almost surely, 21378185053348 is an apocalyptic number.

It is an amenable number.

1378185053348 is a deficient number, since it is larger than the sum of its proper divisors (1161589574812).

1378185053348 is a wasteful number, since it uses less digits than its factorization.

1378185053348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137433827 (or 137433825 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 1378185053348 in words is "one trillion, three hundred seventy-eight billion, one hundred eighty-five million, fifty-three thousand, three hundred forty-eight".

Divisors: 1 2 4 23 46 92 109 218 436 2507 5014 10028 137433691 274867382 549734764 3160974893 6321949786 12643899572 14980272319 29960544638 59921089276 344546263337 689092526674 1378185053348