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48387870 = 23251928297
BaseRepresentation
bin1011100010010…
…1011100011110
310101001100200100
42320211130132
544341402440
64445041530
71125201336
oct270453436
9111040610
1048387870
112534a583
12142562a6
13a04269b
1465d80c6
1543ac230
hex2e2571e

48387870 has 48 divisors (see below), whose sum is σ = 132434640. Its totient is φ = 12223872.

The previous prime is 48387853. The next prime is 48387877. The reversal of 48387870 is 7878384.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48387877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12439 + ... + 15858.

It is an arithmetic number, because the mean of its divisors is an integer number (2759055).

Almost surely, 248387870 is an apocalyptic number.

48387870 is an abundant number, since it is smaller than the sum of its proper divisors (84046770).

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

48387870 is a wasteful number, since it uses less digits than its factorization.

48387870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28329 (or 28326 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 48387870 is about 6956.1390152871. The cubic root of 48387870 is about 364.4003916433.

The spelling of 48387870 in words is "forty-eight million, three hundred eighty-seven thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 38 45 57 90 95 114 171 190 285 342 570 855 1710 28297 56594 84891 141485 169782 254673 282970 424455 509346 537643 848910 1075286 1273365 1612929 2546730 2688215 3225858 4838787 5376430 8064645 9677574 16129290 24193935 48387870