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54620380 = 2254396221
BaseRepresentation
bin1101000001011…
…1000011011100
310210210000002001
43100113003130
5102440323010
65230412044
71232160043
oct320270334
9123700061
1054620380
1128917111
1216361024
13b415469
14737b55a
154bddc3a
hex34170dc

54620380 has 24 divisors (see below), whose sum is σ = 114982560. Its totient is φ = 21794880.

The previous prime is 54620359. The next prime is 54620407. The reversal of 54620380 is 8302645.

It is a super-2 number, since 2×546203802 = 5966771822688800, which contains 22 as substring.

It is a congruent number.

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, 5670 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (4790940).

Almost surely, 254620380 is an apocalyptic number.

It is an amenable number.

54620380 is an abundant number, since it is smaller than the sum of its proper divisors (60362180).

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

54620380 is a wasteful number, since it uses less digits than its factorization.

54620380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 54620380 is about 7390.5601952761. The cubic root of 54620380 is about 379.4182696427.

The spelling of 54620380 in words is "fifty-four million, six hundred twenty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 439 878 1756 2195 4390 6221 8780 12442 24884 31105 62210 124420 2731019 5462038 10924076 13655095 27310190 54620380