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54185235340 = 22537213134361
BaseRepresentation
bin110010011101101100…
…010001001110001100
312011212021002011012011
4302131230101032030
51341432410012330
640520425351004
73625521621025
oct623554211614
9164767064164
1054185235340
1120a86175335
12a602638464
135156b79242
1428a0501c4c
15162200982a
hexc9db1138c

54185235340 has 48 divisors (see below), whose sum is σ = 116922615264. Its totient is φ = 21077798400.

The previous prime is 54185235337. The next prime is 54185235347. The reversal of 54185235340 is 4353258145.

It is a junction number, because it is equal to n+sod(n) for n = 54185235293 and 54185235302.

It is not an unprimeable number, because it can be changed into a prime (54185235347) 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 15 ways as a sum of consecutive naturals, for example, 1559760 + ... + 1594120.

It is an arithmetic number, because the mean of its divisors is an integer number (2435887818).

Almost surely, 254185235340 is an apocalyptic number.

It is an amenable number.

54185235340 is an abundant number, since it is smaller than the sum of its proper divisors (62737379924).

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

54185235340 is a wasteful number, since it uses less digits than its factorization.

54185235340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36538 (or 36536 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 54185235340 in words is "fifty-four billion, one hundred eighty-five million, two hundred thirty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 2131 4262 8524 10655 21310 34361 42620 68722 78847 137444 157694 171805 315388 343610 394235 687220 788470 1271357 1576940 2542714 5085428 6356785 12713570 25427140 73223291 146446582 292893164 366116455 732232910 1464465820 2709261767 5418523534 10837047068 13546308835 27092617670 54185235340