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390984048 = 243271329837
BaseRepresentation
bin10111010011011…
…111000101110000
31000020201001021200
4113103133011300
51300042442143
6102444051200
712455211120
oct2723370560
91006631250
10390984048
11190778114
12aab33b00
1363005910
1439cd8c80
15244d21d3
hex174df170

390984048 has 120 divisors (see below), whose sum is σ = 1346767968. Its totient is φ = 103113216.

The previous prime is 390984017. The next prime is 390984049. The reversal of 390984048 is 840489093.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 390983994 and 390984012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390984049) 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, 1815 + ... + 28022.

Almost surely, 2390984048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390984048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673383984).

390984048 is an abundant number, since it is smaller than the sum of its proper divisors (955783920).

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

390984048 is a wasteful number, since it uses less digits than its factorization.

390984048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29871 (or 29862 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 390984048 is about 19773.3165655132. The cubic root of 390984048 is about 731.2283366802.

The spelling of 390984048 in words is "three hundred ninety million, nine hundred eighty-four thousand, forty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 52 56 63 72 78 84 91 104 112 117 126 144 156 168 182 208 234 252 273 312 336 364 468 504 546 624 728 819 936 1008 1092 1456 1638 1872 2184 3276 4368 6552 13104 29837 59674 89511 119348 179022 208859 238696 268533 358044 387881 417718 477392 537066 626577 716088 775762 835436 1074132 1163643 1253154 1432176 1551524 1670872 1879731 2148264 2327286 2506308 2715167 3103048 3341744 3490929 3759462 4296528 4654572 5012616 5430334 6206096 6981858 7518924 8145501 9309144 10025232 10860668 13963716 15037848 16291002 18618288 21721336 24436503 27927432 30075696 32582004 43442672 48873006 55854864 65164008 97746012 130328016 195492024 390984048