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13023494 = 21129137149
BaseRepresentation
bin110001101011…
…100100000110
3220111122212122
4301223210012
511313222434
61143045542
7215461241
oct61534406
926448778
1013023494
117395820
1244408b2
13290cb13
141a30258
151223c2e
hexc6b906

13023494 has 32 divisors (see below), whose sum is σ = 22356000. Its totient is φ = 5635840.

The previous prime is 13023487. The next prime is 13023499. The reversal of 13023494 is 49432031.

It is a super-2 number, since 2×130234942 = 339222791936072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87332 + ... + 87480.

It is an arithmetic number, because the mean of its divisors is an integer number (698625).

Almost surely, 213023494 is an apocalyptic number.

13023494 is a deficient number, since it is larger than the sum of its proper divisors (9332506).

13023494 is a wasteful number, since it uses less digits than its factorization.

13023494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13023494 is about 3608.8078363914. The cubic root of 13023494 is about 235.2750303414.

The spelling of 13023494 in words is "thirteen million, twenty-three thousand, four hundred ninety-four".

Divisors: 1 2 11 22 29 58 137 149 274 298 319 638 1507 1639 3014 3278 3973 4321 7946 8642 20413 40826 43703 47531 87406 95062 224543 449086 591977 1183954 6511747 13023494