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271869140 = 22521376361
BaseRepresentation
bin10000001101000…
…110010011010100
3200221120101100102
4100031012103110
51024044303030
642551033232
76510564254
oct2015062324
9627511312
10271869140
1112a510344
127706b818
134442b81a
142816d964
1518d03c45
hex103464d4

271869140 has 24 divisors (see below), whose sum is σ = 571282152. Its totient is φ = 108679680.

The previous prime is 271869137. The next prime is 271869161. The reversal of 271869140 is 41968172.

It can be written as a sum of positive squares in 4 ways, for example, as 2515396 + 269353744 = 1586^2 + 16412^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 271869094 and 271869103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39560 + ... + 45920.

It is an arithmetic number, because the mean of its divisors is an integer number (23803423).

Almost surely, 2271869140 is an apocalyptic number.

271869140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271869140 is an abundant number, since it is smaller than the sum of its proper divisors (299413012).

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

271869140 is a wasteful number, since it uses less digits than its factorization.

271869140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8507 (or 8505 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 271869140 is about 16488.4547487022. The cubic root of 271869140 is about 647.8184378035.

The spelling of 271869140 in words is "two hundred seventy-one million, eight hundred sixty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2137 4274 6361 8548 10685 12722 21370 25444 31805 42740 63610 127220 13593457 27186914 54373828 67967285 135934570 271869140