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11951030 = 2571323571
BaseRepresentation
bin101101100101…
…101110110110
3211111011201202
4231211232312
511024413110
61104052502
7203403440
oct55455666
924434652
1011951030
116822a93
124004132
132625920
141831490
1510b10a5
hexb65bb6

11951030 has 64 divisors (see below), whose sum is σ = 27675648. Its totient is φ = 3611520.

The previous prime is 11951011. The next prime is 11951047. The reversal of 11951030 is 3015911.

It is a junction number, because it is equal to n+sod(n) for n = 11950993 and 11951011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20645 + ... + 21215.

It is an arithmetic number, because the mean of its divisors is an integer number (432432).

Almost surely, 211951030 is an apocalyptic number.

11951030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11951030 is an abundant number, since it is smaller than the sum of its proper divisors (15724618).

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

11951030 is a wasteful number, since it uses less digits than its factorization.

11951030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 11951030 is about 3457.0261786686. The cubic root of 11951030 is about 228.6309980527.

Adding to 11951030 its reverse (3015911), we get a palindrome (14966941).

The spelling of 11951030 in words is "eleven million, nine hundred fifty-one thousand, thirty".

Divisors: 1 2 5 7 10 13 14 23 26 35 46 65 70 91 115 130 161 182 230 299 322 455 571 598 805 910 1142 1495 1610 2093 2855 2990 3997 4186 5710 7423 7994 10465 13133 14846 19985 20930 26266 37115 39970 51961 65665 74230 91931 103922 131330 170729 183862 259805 341458 459655 519610 853645 919310 1195103 1707290 2390206 5975515 11951030