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2131220322310 = 2510112971626923
BaseRepresentation
bin11111000000110110101…
…000010101100000000110
321112202001102000220002111
4133000312220111200012
5234404214400303220
64311022531531234
7306655424561302
oct37006650254006
97482042026074
102131220322310
11751933347152
122a5065459b1a
13125c861c73c1
147521a058d02
153a68804315a
hex1f036a15806

2131220322310 has 32 divisors (see below), whose sum is σ = 3877168138272. Its totient is φ = 843396364800.

The previous prime is 2131220322277. The next prime is 2131220322317. The reversal of 2131220322310 is 132230221312.

It is a super-2 number, since 2×21312203223102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131220322317) 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 15 ways as a sum of consecutive naturals, for example, 496509 + ... + 2123431.

It is an arithmetic number, because the mean of its divisors is an integer number (121161504321).

Almost surely, 22131220322310 is an apocalyptic number.

2131220322310 is a deficient number, since it is larger than the sum of its proper divisors (1745947815962).

2131220322310 is a wasteful number, since it uses less digits than its factorization.

2131220322310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628328.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2131220322310 its reverse (132230221312), we get a palindrome (2263450543622).

The spelling of 2131220322310 in words is "two trillion, one hundred thirty-one billion, two hundred twenty million, three hundred twenty-two thousand, three hundred ten".

Divisors: 1 2 5 10 101 202 505 1010 1297 2594 6485 12970 130997 261994 654985 1309970 1626923 3253846 8134615 16269230 164319223 328638446 821596115 1643192230 2110119131 4220238262 10550595655 21101191310 213122032231 426244064462 1065610161155 2131220322310