[go: up one dir, main page]

Search a number
-
+
253887648 = 2537377809
BaseRepresentation
bin11110010001000…
…00010010100000
3122200201211101020
433020200102200
51004443401043
641105405440
76202003140
oct1710402240
9580654336
10253887648
11120349603
1271039880
13407a40a1
1425a0c920
1517450e83
hexf2204a0

253887648 has 48 divisors (see below), whose sum is σ = 761664960. Its totient is φ = 72539136.

The previous prime is 253887637. The next prime is 253887677. The reversal of 253887648 is 846788352.

It is a happy number.

253887648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 253887648.

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, 188233 + ... + 189576.

It is an arithmetic number, because the mean of its divisors is an integer number (15868020).

Almost surely, 2253887648 is an apocalyptic number.

253887648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253887648 is an abundant number, since it is smaller than the sum of its proper divisors (507777312).

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

253887648 is a wasteful number, since it uses less digits than its factorization.

253887648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377829 (or 377821 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 253887648 is about 15933.8522649107. The cubic root of 253887648 is about 633.2091629761.

The spelling of 253887648 in words is "two hundred fifty-three million, eight hundred eighty-seven thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 377809 755618 1133427 1511236 2266854 2644663 3022472 4533708 5289326 6044944 7933989 9067416 10578652 12089888 15867978 18134832 21157304 31735956 36269664 42314608 63471912 84629216 126943824 253887648