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48452240 = 2453716369
BaseRepresentation
bin1011100011010…
…1001010010000
310101011121222102
42320311022100
544400432430
64450255532
71125560114
oct270651220
9111147872
1048452240
1125393981
12142875a8
13a065a85
146613744
1543c1345
hex2e35290

48452240 has 40 divisors (see below), whose sum is σ = 115703160. Its totient is φ = 18855936.

The previous prime is 48452233. The next prime is 48452249. The reversal of 48452240 is 4225484.

It can be written as a sum of positive squares in 4 ways, for example, as 9314704 + 39137536 = 3052^2 + 6256^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×484522402 = 4695239122035200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48452249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225 + ... + 11144.

It is an arithmetic number, because the mean of its divisors is an integer number (2892579).

Almost surely, 248452240 is an apocalyptic number.

48452240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48452240 is an abundant number, since it is smaller than the sum of its proper divisors (67250920).

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

48452240 is a wasteful number, since it uses less digits than its factorization.

48452240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419 (or 16413 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 48452240 is about 6960.7643258481. The cubic root of 48452240 is about 364.5619063616.

The spelling of 48452240 in words is "forty-eight million, four hundred fifty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 16369 32738 65476 81845 130952 163690 261904 327380 605653 654760 1211306 1309520 2422612 3028265 4845224 6056530 9690448 12113060 24226120 48452240