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2115130020 = 223535252167
BaseRepresentation
bin111111000010010…
…0101001010100100
312110101222201220220
41332010211022210
513312433130040
6545514324340
7103262210553
oct17604451244
95411881826
102115130020
11995a32543
124b04296b0
13279287733
14160ca7d9a
15c5a552d0
hex7e1252a4

2115130020 has 24 divisors (see below), whose sum is σ = 5922364224. Its totient is φ = 564034656.

The previous prime is 2115130007. The next prime is 2115130033. The reversal of 2115130020 is 200315112.

It is an interprime number because it is at equal distance from previous prime (2115130007) and next prime (2115130033).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17626024 + ... + 17626143.

It is an arithmetic number, because the mean of its divisors is an integer number (246765176).

Almost surely, 22115130020 is an apocalyptic number.

2115130020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115130020 is an abundant number, since it is smaller than the sum of its proper divisors (3807234204).

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

2115130020 is a wasteful number, since it uses less digits than its factorization.

2115130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35252179 (or 35252177 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2115130020 is about 45990.5427234774. The cubic root of 2115130020 is about 1283.6472352206.

Adding to 2115130020 its reverse (200315112), we get a palindrome (2315445132).

The spelling of 2115130020 in words is "two billion, one hundred fifteen million, one hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 35252167 70504334 105756501 141008668 176260835 211513002 352521670 423026004 528782505 705043340 1057565010 2115130020