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11875830 = 235503787
BaseRepresentation
bin101101010011…
…010111110110
3211100100120120
4231103113312
511020011310
61102312410
7202641261
oct55232766
924310516
1011875830
11678153a
123b88706
1325ca625
141811cd8
151098b70
hexb535f6

11875830 has 32 divisors (see below), whose sum is σ = 28594944. Its totient is φ = 3156576.

The previous prime is 11875813. The next prime is 11875837. The reversal of 11875830 is 3857811.

It is a junction number, because it is equal to n+sod(n) for n = 11875791 and 11875800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11875837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14697 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (893592).

Almost surely, 211875830 is an apocalyptic number.

11875830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11875830 is an abundant number, since it is smaller than the sum of its proper divisors (16719114).

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

11875830 is a wasteful number, since it uses less digits than its factorization.

11875830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 11875830 is about 3446.1326149758. The cubic root of 11875830 is about 228.1504470268.

The spelling of 11875830 in words is "eleven million, eight hundred seventy-five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 503 787 1006 1509 1574 2361 2515 3018 3935 4722 5030 7545 7870 11805 15090 23610 395861 791722 1187583 1979305 2375166 3958610 5937915 11875830