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48278480 = 245797639
BaseRepresentation
bin1011100000101…
…0101111010000
310100211210121212
42320022233100
544324402410
64442435252
71124234405
oct270125720
9110753555
1048278480
1125285378
1214202b28
13a004963
1465aa2ac
154389b05
hex2e0abd0

48278480 has 40 divisors (see below), whose sum is σ = 113683200. Its totient is φ = 19064448.

The previous prime is 48278479. The next prime is 48278491. The reversal of 48278480 is 8487284.

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

It is a super-2 number, since 2×482784802 = 4661623262220800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2501 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (2842080).

Almost surely, 248278480 is an apocalyptic number.

48278480 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 48278480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56841600).

48278480 is an abundant number, since it is smaller than the sum of its proper divisors (65404720).

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

48278480 is a wasteful number, since it uses less digits than its factorization.

48278480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7725 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 41.

The square root of 48278480 is about 6948.2717275593. The cubic root of 48278480 is about 364.1255856158.

The spelling of 48278480 in words is "forty-eight million, two hundred seventy-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 79 80 158 316 395 632 790 1264 1580 3160 6320 7639 15278 30556 38195 61112 76390 122224 152780 305560 603481 611120 1206962 2413924 3017405 4827848 6034810 9655696 12069620 24139240 48278480