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268435460 = 225531571613
BaseRepresentation
bin10000000000000…
…000000000000100
3200201002221020002
4100000000000010
51022204413320
642345300432
76436443446
oct2000000004
9621087202
10268435460
11128585597
1275a94718
13437c8967
1427918496
1518876675
hex10000004

268435460 has 48 divisors (see below), whose sum is σ = 578367216. Its totient is φ = 104612352.

The previous prime is 268435459. The next prime is 268435463. The reversal of 268435460 is 64534862.

It can be written as a sum of positive squares in 8 ways, for example, as 4 + 268435456 = 2^2 + 16384^2 .

It is not an unprimeable number, because it can be changed into a prime (268435463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165614 + ... + 167226.

It is an arithmetic number, because the mean of its divisors is an integer number (12049317).

Almost surely, 2268435460 is an apocalyptic number.

268435460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268435460 is an abundant number, since it is smaller than the sum of its proper divisors (309931756).

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

268435460 is a wasteful number, since it uses less digits than its factorization.

268435460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 268435460 is about 16384.0001220703. Note that the first 3 decimals coincide. The cubic root of 268435460 is about 645.0795807503.

The spelling of 268435460 in words is "two hundred sixty-eight million, four hundred thirty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 53 106 157 212 265 314 530 628 785 1060 1570 1613 3140 3226 6452 8065 8321 16130 16642 32260 33284 41605 83210 85489 166420 170978 253241 341956 427445 506482 854890 1012964 1266205 1709780 2532410 5064820 13421773 26843546 53687092 67108865 134217730 268435460