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308898048 = 2831921169
BaseRepresentation
bin10010011010010…
…110100100000000
3210112020122110110
4102122112210000
51113034214143
650352431320
710440406254
oct2232264400
9715218413
10308898048
11149401748
1287548540
134bcc4c14
142d04c264
151c1ba533
hex12696900

308898048 has 72 divisors (see below), whose sum is σ = 865429600. Its totient is φ = 97542144.

The previous prime is 308898047. The next prime is 308898061. The reversal of 308898048 is 840898803.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 308897988 and 308898006.

It is not an unprimeable number, because it can be changed into a prime (308898047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4008 + ... + 25176.

Almost surely, 2308898048 is an apocalyptic number.

308898048 is a gapful number since it is divisible by the number (38) 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 308898048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432714800).

308898048 is an abundant number, since it is smaller than the sum of its proper divisors (556531552).

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

308898048 is a wasteful number, since it uses less digits than its factorization.

308898048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21207 (or 21193 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 308898048 is about 17575.4956686860. The cubic root of 308898048 is about 675.9870683660.

The spelling of 308898048 in words is "three hundred eight million, eight hundred ninety-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 608 768 912 1216 1824 2432 3648 4864 7296 14592 21169 42338 63507 84676 127014 169352 254028 338704 402211 508056 677408 804422 1016112 1206633 1354816 1608844 2032224 2413266 2709632 3217688 4064448 4826532 5419264 6435376 8128896 9653064 12870752 16257792 19306128 25741504 38612256 51483008 77224512 102966016 154449024 308898048