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11870331 = 3113531019
BaseRepresentation
bin101101010010…
…000001111011
3211100002000220
4231102001323
511014322311
61102231123
7202616244
oct55220173
924302026
1011870331
1167783a0
123b854a3
1325c7c85
14180dccb
151097206
hexb5207b

11870331 has 16 divisors (see below), whose sum is σ = 17331840. Its totient is φ = 7166720.

The previous prime is 11870329. The next prime is 11870333. The reversal of 11870331 is 13307811.

11870331 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11870329) and next prime (11870333).

It is not a de Polignac number, because 11870331 - 21 = 11870329 is a prime.

It is a super-2 number, since 2×118703312 = 281809516099122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11870333) 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, 11140 + ... + 12158.

It is an arithmetic number, because the mean of its divisors is an integer number (1083240).

Almost surely, 211870331 is an apocalyptic number.

11870331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11870331 is a deficient number, since it is larger than the sum of its proper divisors (5461509).

11870331 is a wasteful number, since it uses less digits than its factorization.

11870331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11870331 is about 3445.3346716974. The cubic root of 11870331 is about 228.1152272288.

The spelling of 11870331 in words is "eleven million, eight hundred seventy thousand, three hundred thirty-one".

Divisors: 1 3 11 33 353 1019 1059 3057 3883 11209 11649 33627 359707 1079121 3956777 11870331