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2100100103 = 59181196657
BaseRepresentation
bin111110100101100…
…1111110000000111
312102100201010202022
41331023033300013
513300111200403
6544220233355
7103020361553
oct17513176007
95370633668
102100100103
119884a7322
124a739b85b
132761245aa
1415ccb4863
15c4586d38
hex7d2cfc07

2100100103 has 8 divisors (see below), whose sum is σ = 2147505360. Its totient is φ = 2053088640.

The previous prime is 2100100097. The next prime is 2100100109. The reversal of 2100100103 is 3010010012.

It is an interprime number because it is at equal distance from previous prime (2100100097) and next prime (2100100109).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100100103 - 218 = 2099837959 is a prime.

It is a super-2 number, since 2×21001001032 = 8820840885241221218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100100109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87650 + ... + 109007.

It is an arithmetic number, because the mean of its divisors is an integer number (268438170).

Almost surely, 22100100103 is an apocalyptic number.

2100100103 is a deficient number, since it is larger than the sum of its proper divisors (47405257).

2100100103 is a wasteful number, since it uses less digits than its factorization.

2100100103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196897.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 2100100103 is about 45826.8491498161. The cubic root of 2100100103 is about 1280.5995122541.

Adding to 2100100103 its reverse (3010010012), we get a palindrome (5110110115).

Subtracting 2100100103 from its reverse (3010010012), we obtain a palindrome (909909909).

The spelling of 2100100103 in words is "two billion, one hundred million, one hundred thousand, one hundred three".

Divisors: 1 59 181 10679 196657 11602763 35594917 2100100103