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48221680 = 24513199233
BaseRepresentation
bin1011011111110…
…0110111110000
310100201220201011
42313330313300
544321043210
64441320304
71123606663
oct267746760
9110656634
1048221680
1125246731
1214196094
139cb4b50
1465936da
154377d8a
hex2dfcdf0

48221680 has 80 divisors (see below), whose sum is σ = 121867200. Its totient is φ = 17639424.

The previous prime is 48221633. The next prime is 48221687. The reversal of 48221680 is 8612284.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48221687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206844 + ... + 207076.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 248221680 is an apocalyptic number.

48221680 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 48221680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60933600).

48221680 is an abundant number, since it is smaller than the sum of its proper divisors (73645520).

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

48221680 is a wasteful number, since it uses less digits than its factorization.

48221680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 48221680 is about 6944.1831773075. The cubic root of 48221680 is about 363.9827307349.

The spelling of 48221680 in words is "forty-eight million, two hundred twenty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 199 208 233 260 398 466 520 796 932 995 1040 1165 1592 1864 1990 2330 2587 3029 3184 3728 3980 4660 5174 6058 7960 9320 10348 12116 12935 15145 15920 18640 20696 24232 25870 30290 41392 46367 48464 51740 60580 92734 103480 121160 185468 206960 231835 242320 370936 463670 602771 741872 927340 1205542 1854680 2411084 3013855 3709360 4822168 6027710 9644336 12055420 24110840 48221680