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100013140 = 2255000657
BaseRepresentation
bin1011111011000…
…01010001010100
320222012012020101
411331201101110
5201100410030
613531343444
72323045333
oct575412124
9228165211
10100013140
1151500397
12295b1b84
1317949796
14d3d5d1a
158ba87ca
hex5f61454

100013140 has 12 divisors (see below), whose sum is σ = 210027636. Its totient is φ = 40005248.

The previous prime is 100013113. The next prime is 100013143. The reversal of 100013140 is 41310001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78889924 + 21123216 = 8882^2 + 4596^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100013143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500309 + ... + 2500348.

It is an arithmetic number, because the mean of its divisors is an integer number (17502303).

Almost surely, 2100013140 is an apocalyptic number.

100013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100013140 is an abundant number, since it is smaller than the sum of its proper divisors (110014496).

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

100013140 is a wasteful number, since it uses less digits than its factorization.

100013140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000666 (or 5000664 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100013140 is about 10000.6569784190. The cubic root of 100013140 is about 464.1792126300.

Adding to 100013140 its reverse (41310001), we get a palindrome (141323141).

The spelling of 100013140 in words is "one hundred million, thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 5000657 10001314 20002628 25003285 50006570 100013140