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54396379460 = 22519143148367
BaseRepresentation
bin110010101010010001…
…101110000101000100
312012101222101101110202
4302222101232011010
51342400433120320
640553411110032
73633664411403
oct625221560504
9165358341422
1054396379460
112108437a005
12a6612a2318
13518b835aa7
1428c058563a
151635815b75
hexcaa46e144

54396379460 has 24 divisors (see below), whose sum is σ = 120244629120. Its totient is φ = 20613364704.

The previous prime is 54396379421. The next prime is 54396379481. The reversal of 54396379460 is 6497369345.

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 = 54396379396 and 54396379405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71573804 + ... + 71574563.

It is an arithmetic number, because the mean of its divisors is an integer number (5010192880).

Almost surely, 254396379460 is an apocalyptic number.

It is an amenable number.

54396379460 is an abundant number, since it is smaller than the sum of its proper divisors (65848249660).

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

54396379460 is a wasteful number, since it uses less digits than its factorization.

54396379460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143148395 (or 143148393 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 56.

The spelling of 54396379460 in words is "fifty-four billion, three hundred ninety-six million, three hundred seventy-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 143148367 286296734 572593468 715741835 1431483670 2719818973 2862967340 5439637946 10879275892 13599094865 27198189730 54396379460