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2111253342 = 231131988687
BaseRepresentation
bin111110111010111…
…0010101101011110
312110010200210010020
41331311302231132
513310440101332
6545255253010
7103214233362
oct17565625536
95403623106
102111253342
11993824980
124ab07a166
1327852b043
141605792a2
15c553b82c
hex7dd72b5e

2111253342 has 16 divisors (see below), whose sum is σ = 4606371072. Its totient is φ = 639773720.

The previous prime is 2111253271. The next prime is 2111253349. The reversal of 2111253342 is 2433521112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111253349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15994278 + ... + 15994409.

It is an arithmetic number, because the mean of its divisors is an integer number (287898192).

Almost surely, 22111253342 is an apocalyptic number.

2111253342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2111253342 is an abundant number, since it is smaller than the sum of its proper divisors (2495117730).

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

2111253342 is a wasteful number, since it uses less digits than its factorization.

2111253342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31988703.

The product of its digits is 1440, while the sum is 24.

The square root of 2111253342 is about 45948.3769245444. The cubic root of 2111253342 is about 1282.8625190279.

Adding to 2111253342 its reverse (2433521112), we get a palindrome (4544774454).

The spelling of 2111253342 in words is "two billion, one hundred eleven million, two hundred fifty-three thousand, three hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 31988687 63977374 95966061 191932122 351875557 703751114 1055626671 2111253342