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248839680 = 293532401
BaseRepresentation
bin11101101010011…
…11111000000000
3122100020100212110
432311033320000
51002200332210
640405255320
76111050055
oct1665177000
9570210773
10248839680
11118510a31
126b404540
133c72751b
142509702c
1516ca5420
hexed4fe00

248839680 has 80 divisors (see below), whose sum is σ = 795533904. Its totient is φ = 66355200.

The previous prime is 248839631. The next prime is 248839711. The reversal of 248839680 is 86938842.

It is a happy number.

248839680 is digitally balanced in base 2, 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 (80).

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

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, 8521 + ... + 23880.

Almost surely, 2248839680 is an apocalyptic number.

248839680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248839680 is an abundant number, since it is smaller than the sum of its proper divisors (546694224).

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

248839680 is an equidigital number, since it uses as much as digits as its factorization.

248839680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32427 (or 32411 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 248839680 is about 15774.6530865183. The cubic root of 248839680 is about 628.9844055100.

The spelling of 248839680 in words is "two hundred forty-eight million, eight hundred thirty-nine thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 7680 32401 64802 97203 129604 162005 194406 259208 324010 388812 486015 518416 648020 777624 972030 1036832 1296040 1555248 1944060 2073664 2592080 3110496 3888120 4147328 5184160 6220992 7776240 8294656 10368320 12441984 15552480 16589312 20736640 24883968 31104960 41473280 49767936 62209920 82946560 124419840 248839680