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10311994 = 2711292309
BaseRepresentation
bin100111010101…
…100100111010
3201101220101201
4213111210322
510114440434
61005004414
7153436060
oct47254472
921356351
1010311994
115903610
12355370a
1321a0894
141526030
15d8a614
hex9d593a

10311994 has 32 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 3877440.

The previous prime is 10311953. The next prime is 10311997. The reversal of 10311994 is 49911301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10311997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3312 + ... + 5620.

It is an arithmetic number, because the mean of its divisors is an integer number (623700).

Almost surely, 210311994 is an apocalyptic number.

10311994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10311994 is a deficient number, since it is larger than the sum of its proper divisors (9646406).

10311994 is a wasteful number, since it uses less digits than its factorization.

10311994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 10311994 is about 3211.2293596067. The cubic root of 10311994 is about 217.6611321941.

It can be divided in two parts, 1031 and 1994, that added together give a square (3025 = 552).

The spelling of 10311994 in words is "ten million, three hundred eleven thousand, nine hundred ninety-four".

Divisors: 1 2 7 11 14 22 29 58 77 154 203 319 406 638 2233 2309 4466 4618 16163 25399 32326 50798 66961 133922 177793 355586 468727 736571 937454 1473142 5155997 10311994