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2111231030 = 252911716217
BaseRepresentation
bin111110111010110…
…1101010000110110
312110010122122111212
41331311231100312
513310433343110
6545255001422
7103214111336
oct17565552066
95403578455
102111231030
1199380a137
124ab069272
13278520b3c
141605710c6
15c5534e05
hex7dd6d436

2111231030 has 32 divisors (see below), whose sum is σ = 3935247840. Its totient is φ = 814544640.

The previous prime is 2111231027. The next prime is 2111231039. The reversal of 2111231030 is 301321112.

It is a junction number, because it is equal to n+sod(n) for n = 2111230996 and 2111231014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111231039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336482 + ... + 342698.

It is an arithmetic number, because the mean of its divisors is an integer number (122976495).

Almost surely, 22111231030 is an apocalyptic number.

2111231030 is a deficient number, since it is larger than the sum of its proper divisors (1824016810).

2111231030 is a wasteful number, since it uses less digits than its factorization.

2111231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7424.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2111231030 is about 45948.1341296902. The cubic root of 2111231030 is about 1282.8579998594.

Adding to 2111231030 its reverse (301321112), we get a palindrome (2412552142).

The spelling of 2111231030 in words is "two billion, one hundred eleven million, two hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 29 58 145 290 1171 2342 5855 6217 11710 12434 31085 33959 62170 67918 169795 180293 339590 360586 901465 1802930 7280107 14560214 36400535 72801070 211123103 422246206 1055615515 2111231030