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2100331461 = 310112754581
BaseRepresentation
bin111110100110000…
…1000001111000101
312102101010220010010
41331030020033011
513300141101321
6544225220433
7103022344224
oct17514101705
95371126103
102100331461
11988645128
124a7491719
132761a59a7
1415cd34cbb
15c45d0676
hex7d3083c5

2100331461 has 16 divisors (see below), whose sum is σ = 2850490368. Its totient is φ = 1375416000.

The previous prime is 2100331433. The next prime is 2100331469. The reversal of 2100331461 is 1641330012.

It is not a de Polignac number, because 2100331461 - 210 = 2100330437 is a prime.

It is a super-2 number, since 2×21003314612 = 8822784492132789042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100331469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11191 + ... + 65771.

It is an arithmetic number, because the mean of its divisors is an integer number (178155648).

Almost surely, 22100331461 is an apocalyptic number.

It is an amenable number.

2100331461 is a deficient number, since it is larger than the sum of its proper divisors (750158907).

2100331461 is a wasteful number, since it uses less digits than its factorization.

2100331461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54812.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2100331461 is about 45829.3733428682. The cubic root of 2100331461 is about 1280.6465363717.

Adding to 2100331461 its reverse (1641330012), we get a palindrome (3741661473).

The spelling of 2100331461 in words is "two billion, one hundred million, three hundred thirty-one thousand, four hundred sixty-one".

Divisors: 1 3 101 127 303 381 12827 38481 54581 163743 5512681 6931787 16538043 20795361 700110487 2100331461