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1018113700 = 225210181137
BaseRepresentation
bin111100101011110…
…010111010100100
32121221202112102211
4330223302322210
54041114114300
6245005413204
734141552342
oct7453627244
92557675384
101018113700
1148277598a
12244b6a204
13132c0cb56
1499304992
155e5ad4ba
hex3caf2ea4

1018113700 has 18 divisors (see below), whose sum is σ = 2209306946. Its totient is φ = 407245440.

The previous prime is 1018113673. The next prime is 1018113703. The reversal of 1018113700 is 73118101.

It can be written as a sum of positive squares in 3 ways, for example, as 17909824 + 1000203876 = 4232^2 + 31626^2 .

It is a super-2 number, since 2×10181137002 = 2073111012255380000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1018113703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5090469 + ... + 5090668.

Almost surely, 21018113700 is an apocalyptic number.

1018113700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1018113700 is an abundant number, since it is smaller than the sum of its proper divisors (1191193246).

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

1018113700 is a wasteful number, since it uses less digits than its factorization.

1018113700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181151 (or 10181144 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 22.

The square root of 1018113700 is about 31907.8940075963. The cubic root of 1018113700 is about 1006.0018062566.

The spelling of 1018113700 in words is "one billion, eighteen million, one hundred thirteen thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 10181137 20362274 40724548 50905685 101811370 203622740 254528425 509056850 1018113700