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54102105440 = 255338138159
BaseRepresentation
bin110010011000101111…
…001001110101100000
312011122110122201101222
4302120233021311200
51341300114333230
640504255514212
73623462210555
oct623057116540
9164573581358
1054102105440
1120a43256639
12a59a828968
135142891356
142893462a2c
151619a886e5
hexc98bc9d60

54102105440 has 24 divisors (see below), whose sum is σ = 127816224480. Its totient is φ = 21640842112.

The previous prime is 54102105433. The next prime is 54102105451. The reversal of 54102105440 is 4450120145.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 169068920 + ... + 169069239.

It is an arithmetic number, because the mean of its divisors is an integer number (5325676020).

Almost surely, 254102105440 is an apocalyptic number.

It is an amenable number.

54102105440 is an abundant number, since it is smaller than the sum of its proper divisors (73714119040).

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

54102105440 is a wasteful number, since it uses less digits than its factorization.

54102105440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338138174 (or 338138166 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 54102105440 its reverse (4450120145), we get a palindrome (58552225585).

The spelling of 54102105440 in words is "fifty-four billion, one hundred two million, one hundred five thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 338138159 676276318 1352552636 1690690795 2705105272 3381381590 5410210544 6762763180 10820421088 13525526360 27051052720 54102105440