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54213607940 = 22543471341257
BaseRepresentation
bin110010011111011000…
…100000001000000100
312011221020110122002012
4302133120200020010
51342012140423230
640523321433352
73626315031002
oct623730401004
9164836418065
1054213607940
1120aa0194068
12a61003b858
13515ca0156b
1428a41a9a72
151624761395
hexc9f620204

54213607940 has 48 divisors (see below), whose sum is σ = 118974949632. Its totient is φ = 20730452736.

The previous prime is 54213607919. The next prime is 54213607963. The reversal of 54213607940 is 4970631245.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 630209 + ... + 711048.

It is an arithmetic number, because the mean of its divisors is an integer number (2478644784).

Almost surely, 254213607940 is an apocalyptic number.

It is an amenable number.

54213607940 is an abundant number, since it is smaller than the sum of its proper divisors (64761341692).

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

54213607940 is a wasteful number, since it uses less digits than its factorization.

54213607940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341356 (or 1341354 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 54213607940 in words is "fifty-four billion, two hundred thirteen million, six hundred seven thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 43 47 86 94 172 188 215 235 430 470 860 940 2021 4042 8084 10105 20210 40420 1341257 2682514 5365028 6706285 13412570 26825140 57674051 63039079 115348102 126078158 230696204 252156316 288370255 315195395 576740510 630390790 1153481020 1260781580 2710680397 5421360794 10842721588 13553401985 27106803970 54213607940