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48615520 = 255311977
BaseRepresentation
bin1011100101110…
…1000001100000
310101110220221211
42321131001200
544421144040
64453555504
71130140132
oct271350140
9111426854
1048615520
1125495618
1214345b94
13a0c21a5
146657052
1544048ea
hex2e5d060

48615520 has 48 divisors (see below), whose sum is σ = 115341408. Its totient is φ = 19363840.

The previous prime is 48615493. The next prime is 48615551. The reversal of 48615520 is 2551684.

It is a congruent number.

It is an unprimeable number.

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, 49272 + ... + 50248.

It is an arithmetic number, because the mean of its divisors is an integer number (2402946).

Almost surely, 248615520 is an apocalyptic number.

48615520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48615520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57670704).

48615520 is an abundant number, since it is smaller than the sum of its proper divisors (66725888).

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

48615520 is a wasteful number, since it uses less digits than its factorization.

48615520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 48615520 is about 6972.4830584233. The cubic root of 48615520 is about 364.9709615980.

The spelling of 48615520 in words is "forty-eight million, six hundred fifteen thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 311 622 977 1244 1555 1954 2488 3110 3908 4885 4976 6220 7816 9770 9952 12440 15632 19540 24880 31264 39080 49760 78160 156320 303847 607694 1215388 1519235 2430776 3038470 4861552 6076940 9723104 12153880 24307760 48615520