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48815940 = 22351942821
BaseRepresentation
bin1011101000110…
…1111101000100
310101212002212210
42322031331010
544444102230
64502143420
71131633345
oct272157504
9111762783
1048815940
1125612158
1214421b70
13a162494
1466aa0cc
154443eb0
hex2e8df44

48815940 has 48 divisors (see below), whose sum is σ = 143881920. Its totient is φ = 12332160.

The previous prime is 48815933. The next prime is 48815941. The reversal of 48815940 is 4951884.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (48815941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20271 + ... + 22550.

It is an arithmetic number, because the mean of its divisors is an integer number (2997540).

Almost surely, 248815940 is an apocalyptic number.

It is an amenable number.

48815940 is an abundant number, since it is smaller than the sum of its proper divisors (95065980).

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

48815940 is a wasteful number, since it uses less digits than its factorization.

48815940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42852 (or 42850 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 48815940 is about 6986.8404876596. The cubic root of 48815940 is about 365.4718112006.

The spelling of 48815940 in words is "forty-eight million, eight hundred fifteen thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 380 570 1140 42821 85642 128463 171284 214105 256926 428210 513852 642315 813599 856420 1284630 1627198 2440797 2569260 3254396 4067995 4881594 8135990 9763188 12203985 16271980 24407970 48815940